{"title":"CPI Patch Fittings","description":"CPI patch spinweld fittings.","products":[{"product_id":"rv-tank-fittings2-patch-1-5-8-hole-size","title":"2\" White Patch 1 5\/8\" Hole Size Part # 51\/51-LL","description":"\u003cp\u003e2\" White Patch (1 5\/8\" Hole Size) \u003c\/p\u003e\n\u003cp\u003ePart # 51-LL \/500237 with UV Protection\u003c\/p\u003e","brand":"CPI","offers":[{"title":"Default Title","offer_id":32789644542011,"sku":"51","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/files\/rv-tank-fittings2-patch-1-5-8-hole-size-shopify-1.jpg?v=1779181508"},{"product_id":"rv-tank-fittings1-patch-7-8-hole-size","title":"1\" Spinweld Patch - Part # 51AD","description":"\u003cp\u003e1\" Spinweld Patch (7\/8\" Hole Size)\u003c\/p\u003e\n\u003cp\u003eCustom Plastics Part # 51AD (500119) \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSpin Weld Patch for RV Fresh Water and Holding Tanks\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePatch to repair\/cover holes in tank\u003c\/span\u003e\u003c\/p\u003e","brand":"CPI","offers":[{"title":"Default Title","offer_id":32789644673083,"sku":"51AD\/500119","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/files\/rv-tank-fittings1-patch-7-8-hole-size-shopify-1.jpg?v=1779181421"},{"product_id":"rv-tank-fittingsbreather-patch-1-1-8-hole-size","title":"Breather Patch 1 1\/8\" Hole Size Part # 51A BA","description":"\u003cp\u003eBreather Patch (1 1\/8\" Hole Size)\u003c\/p\u003e\n\u003cp\u003ePart # 51A (BA) 500504\u003c\/p\u003e","brand":"CPI","offers":[{"title":"Default Title","offer_id":32789646704699,"sku":"51A","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/files\/rv-tank-fittingsbreather-patch-1-1-8-hole-size-shopify-1.jpg?v=1779181586"},{"product_id":"rv-tank-fittingsblack-probe-patch-1-2-hole-size","title":"1\/2\" Black Probe Patch 1\/2\" Hole Size Part # 50B","description":"\u003cp\u003eBlack Probe Patch (1\/2\" Hole Size)\u003c\/p\u003e\n\u003cp\u003ePart # 50B (500117)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"CPI","offers":[{"title":"Default Title","offer_id":32789647196219,"sku":"50B","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/files\/rv-tank-fittingsblack-probe-patch-1-2-hole-size-shopify-1.jpg?v=1779181545"},{"product_id":"rv-tank-fittings2-black-spin-patch-1-hole-size","title":"2\" Black Spin Patch 1\" Hole Size Part # 51AB","description":"\u003cp\u003e2\" Black Spin Patch (1\" Hole Size)\u003c\/p\u003e\n\u003cp\u003ePart # 51AB (500179)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"CPI","offers":[{"title":"Default Title","offer_id":32789649719355,"sku":"51AB","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/files\/rv-tank-fittings2-black-spin-patch-1-hole-size-shopify-1.jpg?v=1779181436"},{"product_id":"3-black-patch-1-3-4-hole-size-part-81","title":"3\" Black Patch 1-3\/4\" Hole Size Part # 81","description":"\u003cp\u003e3\" Black Patch (1-3\/4\" Hole Size)\u003c\/p\u003e\n\u003cp\u003ePart # 81 (500057)\u003c\/p\u003e","brand":"CPI","offers":[{"title":"Default Title","offer_id":41646472921240,"sku":"81","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/files\/3-black-patch-1-3-4-hole-size-part-81-shopify-1.jpg?v=1779178497"},{"product_id":"white-probe-patch-1-2-hole-size-part-50","title":"White Probe Patch 1\/2\" Hole Size Part # 50","description":"\u003cp\u003eWhite Probe Patch (1\/2\" Hole Size)\u003c\/p\u003e\n\u003cp\u003ePart # 50 (500117) \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"CPI","offers":[{"title":"Default Title","offer_id":41646604124312,"sku":"50","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/files\/white-probe-patch-1-2-hole-size-part-50-shopify-1.jpg?v=1779181644"},{"product_id":"3-patch-2-1-2-hole-size-part-76","title":"3\" Patch 2-1\/2\" Hole Size Part  # 76","description":"\u003cp\u003e3\" Patch (1 5\/8\" Hole Size)\u003c\/p\u003e\n\u003cp\u003ePart #76 (500118)\u003c\/p\u003e","brand":"CPI","offers":[{"title":"Default Title","offer_id":41646621524120,"sku":"500118","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/files\/3-patch-2-1-2-hole-size-part-76-shopify-1.jpg?v=1779178573"},{"product_id":"4-1-2-patch-3-3-4-hole-size-part-69l","title":"4-1\/2\" Patch 3-3\/4\" Hole Size Part  # 69L","description":"\u003cp\u003e4-1\/2\" Patch (3-3\/4\" Hole Size)\u003c\/p\u003e\n\u003cp\u003e3.75\" Pilot x 4.50\" OD\u003c\/p\u003e\n\u003cp\u003ePart  # 69L\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"CPI","offers":[{"title":"Default Title","offer_id":41658128564376,"sku":"69L","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/files\/4-1-2-patch-3-3-4-hole-size-part-69l-shopify-1_f0d83ea4-5dff-4c88-82f5-5a4d30ae34c8.jpg?v=1779178710"},{"product_id":"cpi-rv-tank-patch-drive-tool-4-1-2-patch-3-1-8-hole-size-ld69l","title":"CPI - RV Tank Patch Drive Tool - 4-1\/2\" Patch - 3-1\/8\" Hole Size - Part # LD69L","description":"\u003cdiv style=\"background:#f3f4f6;border-left:4px solid #1d9bf0;padding:16px;margin-bottom:12px;\"\u003e\u003cstrong style=\"color:#1d9bf0;\"\u003e✓ ElkhartRVParts.com - The Only Authorized Place for CPI\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"background:#f3f4f6;border-left:4px solid #10b981;padding:16px;margin-bottom:20px;\"\u003e\u003cstrong style=\"color:#10b981;\"\u003e✓ 100% Verified Authentic OEM Grade Part\u003c\/strong\u003e\u003c\/div\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eCPI LD69L Drive Tool\u003c\/strong\u003e is the purpose-built installation tool for driving CPI #69 and #69L spinweld patch fittings into RV fresh water and holding tanks. Without the correct drive tool, patch fittings can be damaged during installation — this tool ensures a clean, leak-free weld every time.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures \u0026amp; Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LD69L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Patches:\u003c\/strong\u003e CPI Patch #69 \u0026amp; #69L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatch Diameter:\u003c\/strong\u003e 4-1\/2\" (4.5\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired Hole Size:\u003c\/strong\u003e 3-1\/8\" (3.125\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e CPI (Custom Plastics Inc.)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e RV fresh water tanks \u0026amp; holding tanks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRating:\u003c\/strong\u003e 4.9\/5 stars (8 verified reviews)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the CPI LD69L Drive Tool?\u003c\/h2\u003e\n\u003cp\u003eSpinweld patch fittings require precise rotational force to create a proper friction weld to the tank wall. The \u003cstrong\u003eCPI LD69L drive tool\u003c\/strong\u003e is engineered specifically for the 4-1\/2\" patch geometry — it seats perfectly and transfers torque evenly, preventing cracking or misalignment. Using a generic tool risks a failed weld and a leaking tank.\u003c\/p\u003e\n\u003cp\u003eThis is the same tool used by professional RV technicians and service centers. If you're repairing an RV tank with a CPI #69 or #69L patch, this drive tool is not optional — it's essential.\u003c\/p\u003e\n\n\u003ch2\u003eCompare RV Tank Patch Fittings\u003c\/h2\u003e\n\u003cp\u003eNot sure which patch or tool is right for your repair? Use this guide to match your hole size to the correct CPI patch fitting.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:#dc2626;color:#fff;\"\u003e\n\u003cth style=\"padding:10px;border:1px solid #e5e7eb;text-align:left;\"\u003eModel \/ Part #\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #e5e7eb;text-align:left;\"\u003ePatch Diameter\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #e5e7eb;text-align:left;\"\u003eHole Size\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #e5e7eb;text-align:left;\"\u003eBest For\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #e5e7eb;text-align:left;\"\u003eView Details\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-left:3px solid #dc2626;background:#fef2f2;\"\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eLD69L (Drive Tool)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e4-1\/2\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e3-1\/8\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eInstalling #69 \u0026amp; #69L patches\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eCurrent Product\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003ePart #76 (Patch)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e3\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e2-1\/2\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eMedium hole repairs\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/3-patch-2-1-2-hole-size-part-76\"\u003eView\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003ePart #51AD (Patch)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e1\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e7\/8\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eSmall hole spinweld repairs\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/rv-tank-fittings1-patch-7-8-hole-size\"\u003eView\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003ePart #50 (Patch)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eWhite Probe\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e1\/2\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eProbe port repairs\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/white-probe-patch-1-2-hole-size-part-50\"\u003eView\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eCPI Patch #71B (Patch)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e3.400\" OD\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e2.200\" Pilot\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eLarger OD patch repairs\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/cpi-patch-2-200-pilot-x-3-400-od-black\"\u003eView\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:13px;color:#6b7280;margin-top:8px;\"\u003e\u003cem\u003eTip: Always match your drive tool to the exact patch part number. Using the wrong tool can crack the patch or create a weak weld.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LD69L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatch Compatibility:\u003c\/strong\u003e CPI #69 \u0026amp; #69L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatch Diameter:\u003c\/strong\u003e 4-1\/2\" (4.500\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired Hole Size:\u003c\/strong\u003e 3-1\/8\" (3.125\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Method:\u003c\/strong\u003e Drill-driven spinweld installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Engineered for CPI spinweld patch geometry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 5 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e CPI \/ Custom Plastics Inc.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e LD69L\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x CPI LD69L Drive Tool\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eNote: Patch fitting (#69 or #69L) sold separately\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Models \u0026amp; Alternatives\u003c\/h2\u003e\n\u003cp\u003eThis drive tool is designed exclusively for CPI #69 and #69L patch fittings. Browse compatible patches and related RV tank repair products:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/3-patch-2-1-2-hole-size-part-76\"\u003e3\" Patch - 2-1\/2\" Hole Size - Part #76\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/rv-tank-fittings1-patch-7-8-hole-size\"\u003e1\" Spinweld Patch - Part #51AD\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/white-probe-patch-1-2-hole-size-part-50\"\u003eWhite Probe Patch - 1\/2\" Hole Size - Part #50\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/rv-tank-fittings-1\"\u003eShop All RV Tank Fittings\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs the patch fitting included with the LD69L drive tool?\u003c\/strong\u003e\u003cbr\u003eNo — the LD69L is the drive tool only. The CPI #69 or #69L patch fitting must be purchased separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat hole size do I need to drill for the #69 patch?\u003c\/strong\u003e\u003cbr\u003eYou need a 3-1\/8\" (3.125\") hole in the tank wall to use the CPI #69 or #69L patch with this drive tool.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this drive tool with other CPI patches?\u003c\/strong\u003e\u003cbr\u003eNo — the LD69L is specifically engineered for the 4-1\/2\" patch geometry of the #69 and #69L. Using it with other patch sizes may result in a failed installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this compatible with both fresh water and holding tanks?\u003c\/strong\u003e\u003cbr\u003eYes — CPI spinweld patch fittings and their drive tools are designed for use on both RV fresh water tanks and holding tanks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I install a spinweld patch fitting?\u003c\/strong\u003e\u003cbr\u003eDrill the correct hole size, insert the patch fitting, then use the LD69L drive tool in a drill to spin-weld the fitting to the tank wall using friction heat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere can I buy the CPI LD69L drive tool?\u003c\/strong\u003e\u003cbr\u003eThe CPI LD69L is available exclusively at ElkhartRVParts.com — the only authorized CPI dealer online.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Elkhart RV Parts?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAuthorized CPI dealer — 100% OEM authentic parts\u003c\/li\u003e\n\u003cli\u003e4.9\/5 star rating from verified RV technicians and owners\u003c\/li\u003e\n\u003cli\u003eExpert support via AI Live Chat — get help matching the right tool to your repair\u003c\/li\u003e\n\u003cli\u003eFast shipping on all RV tank repair tools and fittings\u003c\/li\u003e\n\u003cli\u003eTrusted by professional RV service centers nationwide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"background:#f3f4f6;border-left:4px solid #dc2626;padding:16px;margin-top:20px;\"\u003e\n\u003cstrong style=\"color:#dc2626;\"\u003eReady to complete your RV tank repair?\u003c\/strong\u003e\u003cbr\u003eAdd the CPI LD69L Drive Tool to your cart and use our AI Live Chat to confirm compatibility with your specific patch fitting and tank model.\n\u003c\/div\u003e","brand":"CPI","offers":[{"title":"Default Title","offer_id":41658130399384,"sku":"LD69L","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/files\/cpi-rv-tank-patch-drive-tool-4-1-2-patch-3-1-8-hole-size-ld69l-representative-placeholder.png?v=1779187746"},{"product_id":"cpi-black-spinweld-patch-holding-tank-4-5-od-69lb","title":"CPI - Black Spinweld Patch for RV Plastic Holding Tanks - 3.75\" Pilot x 4.50\" OD - 3-3\/4\" Hole Size - Part # 69LB","description":"\u003cdiv style=\"background:#f3f4f6;border-left:4px solid #1d9bf0;padding:16px;margin-bottom:12px;\"\u003e\u003cstrong style=\"color:#1d9bf0;\"\u003e✓ ElkhartRVParts.com - The Only Authorized Place for CPI\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"background:#f3f4f6;border-left:4px solid #10b981;padding:16px;margin-bottom:24px;\"\u003e\u003cstrong style=\"color:#10b981;\"\u003e✓ 100% Verified Authentic OEM Grade Part\u003c\/strong\u003e\u003c\/div\u003e\n\n\u003cp\u003eWhen your RV plastic holding tank develops a hole, the CPI 69LB Black Spinweld Patch delivers a fast, reliable, OEM-grade repair. Engineered specifically for RV fresh water and holding tank applications, this 4-1\/2\" patch covers a 3-3\/4\" hole with a precision spinweld fit — no guesswork, no leaks.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures \u0026amp; Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 69LB (CPI \/ Elkhart Plastics)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePilot Diameter:\u003c\/strong\u003e 3.75\" (3-3\/4\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 4.50\" (4-1\/2\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Size Covered:\u003c\/strong\u003e 3-3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e OEM-grade plastic — compatible with standard RV holding tank materials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Spinweld method for a secure, watertight seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e RV fresh water tanks, black water holding tanks, gray water tanks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the CPI 69LB Spinweld Patch?\u003c\/h2\u003e\n\u003cp\u003eNot all RV holding tank patch fittings are created equal. The CPI 69LB is a factory-spec part sourced directly from CPI (Elkhart Plastics) — the same manufacturer that supplies original equipment to major RV builders. When you need an RV holding tank patch fitting that installs correctly the first time, this is the part professionals reach for.\u003c\/p\u003e\n\u003cp\u003eThe spinweld installation method creates a permanent, vibration-resistant bond that outlasts adhesive patches. Whether you're a DIY RV owner or a certified technician, the 3.75\" pilot x 4.50\" OD dimensions make alignment simple and the repair airtight.\u003c\/p\u003e\n\n\u003ch2\u003eCompare RV Holding Tank Patch Fittings\u003c\/h2\u003e\n\u003cp\u003eNot sure which patch size fits your tank hole? Use this comparison to find the right CPI spinweld patch for your application.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-family:sans-serif;font-size:14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:#dc2626;color:#fff;\"\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border:1px solid #e5e7eb;\"\u003eModel (Part #)\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border:1px solid #e5e7eb;\"\u003ePilot Diameter\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border:1px solid #e5e7eb;\"\u003eOuter Diameter\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border:1px solid #e5e7eb;\"\u003eHole Size\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border:1px solid #e5e7eb;\"\u003eBest For\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border:1px solid #e5e7eb;\"\u003eView Details\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-left:3px solid #dc2626;background:#fef2f2;\"\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eCPI 69LB\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e3.75\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e4.50\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e3-3\/4\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003eLarge hole repair on holding tanks\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eCurrent Product\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003eCPI 71B\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e2.200\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e3.400\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e~2\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003eMedium hole repair\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/cpi-patch-2-200-pilot-x-3-400-od-black\"\u003eView\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003eCPI 51B\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e1.550\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e2.300\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e~1-1\/2\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003eSmall-medium hole repair\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/cpi-patch-1-550-pilot-x-2-300-od-black\"\u003eView\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003eCPI 51AB\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e1.00\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e2.00\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e1\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003eSmall hole repair\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/rv-tank-fittings2-black-spin-patch-1-hole-size\"\u003eView\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003eCPI 81\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e1.75\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e3.00\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e1-3\/4\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003eMedium hole repair\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/3-black-patch-1-3-4-hole-size-part-81\"\u003eView\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:13px;color:#6b7280;margin-top:8px;\"\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e Measure the hole diameter in your tank before ordering. The pilot diameter should be slightly larger than the hole for a proper spinweld seal.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 69LB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePilot (Hole Size):\u003c\/strong\u003e 3.75\" (3-3\/4\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 4.50\" (4-1\/2\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.7 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Spinweld\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Tanks:\u003c\/strong\u003e RV plastic holding tanks, fresh water tanks, gray water tanks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e CPI \/ Elkhart Plastics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x CPI 69LB Black Spinweld Patch\u003c\/li\u003e\n\u003cli\u003eManufacturer warranty applies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Models \u0026amp; Alternatives\u003c\/h2\u003e\n\u003cp\u003eLooking for a different size? Browse our full line of \u003ca href=\"\/collections\/rv-tank-fittings\"\u003eRV Tank Fittings\u003c\/a\u003e. For smaller holes, consider the \u003ca href=\"\/products\/rv-tank-fittings2-black-spin-patch-1-hole-size\"\u003eCPI 51AB (1\" hole)\u003c\/a\u003e or the \u003ca href=\"\/products\/3-black-patch-1-3-4-hole-size-part-81\"\u003eCPI 81 (1-3\/4\" hole)\u003c\/a\u003e. For medium repairs, the \u003ca href=\"\/products\/cpi-patch-2-200-pilot-x-3-400-od-black\"\u003eCPI 71B\u003c\/a\u003e is a popular choice.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I install a spinweld patch on my RV holding tank?\u003c\/strong\u003e\u003cbr\u003eA spinweld patch is installed using a drill and spinweld tool. The patch spins at high speed against the tank surface, generating friction heat that fuses the plastic for a permanent, watertight seal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the CPI 69LB compatible with black water holding tanks?\u003c\/strong\u003e\u003cbr\u003eYes. The 69LB is designed for use on RV plastic holding tanks including black water, gray water, and fresh water tanks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat hole size does the 69LB patch cover?\u003c\/strong\u003e\u003cbr\u003eThe 69LB covers a 3-3\/4\" (3.75\") hole. The outer diameter is 4.50\" for full coverage and a secure seal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this an OEM part?\u003c\/strong\u003e\u003cbr\u003eYes. CPI (Elkhart Plastics) is an original equipment manufacturer supplying RV builders directly. This is the same part used in factory production.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere can I buy the CPI 69LB spinweld patch?\u003c\/strong\u003e\u003cbr\u003eElkhartRVParts.com is an authorized CPI dealer. Ordering here ensures you receive a genuine OEM-grade part with full manufacturer backing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this patch on a fresh water tank?\u003c\/strong\u003e\u003cbr\u003eYes. The 69LB spinweld patch is compatible with both fresh water and holding tank applications.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Elkhart RV Parts?\u003c\/h2\u003e\n\u003cp\u003eWe are an authorized CPI dealer with direct access to the full Elkhart Plastics catalog. Every part we sell is 100% authentic — no gray market, no counterfeits. We ship fast, stand behind every order, and our AI Live Chat is available to help you confirm fitment before you buy.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f3f4f6;border-left:4px solid #dc2626;padding:16px;margin-top:24px;\"\u003e\n\u003cstrong style=\"color:#dc2626;\"\u003eReady to repair your RV tank?\u003c\/strong\u003e Add the CPI 69LB to your cart now — or chat with us via AI Live Chat to confirm this is the right patch for your application.\n\u003c\/div\u003e","brand":"CPI","offers":[{"title":"Default Title","offer_id":42500040196248,"sku":"69LB","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/files\/cpi-black-spinweld-patch-holding-tank-4-5-od-69lb-shopify-1.jpg?v=1779180040"}],"url":"https:\/\/elkhartrvparts.com\/collections\/cpi-patch-fittings.oembed","provider":"Elkhart RV Parts","version":"1.0","type":"link"}