{"product_id":"3-4-uniseal-grommet-white-pvc-schedule-40-tank-fitting-u075-w","title":"The Uniseal Warehouse - 3\/4\" Uniseal Grommet - White - PVC Schedule 40 Pipe Tank Fitting - 1-1\/4\" Hole Saw - U075-W","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 The Uniseal Warehouse\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\u003eThe \u003cstrong\u003e3\/4\" Uniseal Grommet White (U075-W)\u003c\/strong\u003e by The Uniseal Warehouse is the trusted solution for creating a permanent, leak-proof connection between 3\/4\" PVC Schedule 40 pipe and your RV holding tank. No adhesives, no sealants — just a rock-solid compression seal that holds up season after season.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures \u0026amp; Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe ID (Inner Diameter):\u003c\/strong\u003e 3\/4\" (19mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe OD (Outer Diameter):\u003c\/strong\u003e 1.050\" (27mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired Hole Saw Size:\u003c\/strong\u003e 1-1\/4\" (32mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Wall Thickness:\u003c\/strong\u003e Up to 3\/8\" (9mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e UV-Resistant Thermoplastic Elastomer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Pipe:\u003c\/strong\u003e PVC Schedule 40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold:\u003c\/strong\u003e Individually (Each)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the U075-W Uniseal Grommet?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e3\/4\" Uniseal Grommet U075-W\u003c\/strong\u003e uses a proven compression-seal design — push your PVC pipe through the grommet and it instantly forms a watertight seal without any glue, clamps, or sealant. The UV-resistant thermoplastic elastomer construction ensures long-term durability even in harsh outdoor RV environments.\u003c\/p\u003e\n\u003cp\u003eWhether you're plumbing a fresh water tank, grey water tank, or black water holding tank, the \u003cstrong\u003eU075-W Uniseal fitting\u003c\/strong\u003e delivers a professional-grade seal trusted by RV manufacturers and repair shops nationwide. With a perfect 5.0-star rating from verified buyers, it's the size most commonly used for standard RV tank vent and drain connections.\u003c\/p\u003e\n\n\u003ch2\u003eCompare Uniseal Grommet Sizes\u003c\/h2\u003e\n\u003cp\u003eNot sure which Uniseal size fits your pipe? Use this table to match your pipe's outer diameter to the correct grommet and hole saw size.\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\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #e5e7eb;text-align:left;\"\u003ePipe ID\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #e5e7eb;text-align:left;\"\u003ePipe OD\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #e5e7eb;text-align:left;\"\u003eHole Saw Size\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #e5e7eb;text-align:left;\"\u003eMax Wall Thickness\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\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eU050-W\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e1\/2\" (13mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e0.84\" (21mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e1-1\/4\" (32mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e3\/8\" (9mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eSmall sensors, vents, low-flow connections\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/1-2-uniseal-grommet-white-pvc-schedule-40-tank-fitting-u050-w\" style=\"color:#dc2626;\"\u003eView U050-W\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-left:3px solid #dc2626;background:#fef2f2;\"\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\n\u003cstrong\u003eU075-W\u003c\/strong\u003e (This Product)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e3\/4\" (19mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e1.050\" (27mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e1-1\/4\" (32mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e3\/8\" (9mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eStandard RV tank vents, drains, fill lines\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eCurrent Page\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eU100-W\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e1\" (25mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e1.315\" (33mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e1-3\/4\" (44mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e3\/8\" (9mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eLarger drain\/fill lines, high-flow applications\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/1-uniseal-grommet-white-u100-w\" style=\"color:#dc2626;\"\u003eView U100-W\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eU150-W\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e1-1\/2\" (38mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e1.900\" (48mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e2-1\/2\" (64mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e3\/8\" (9mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eMain tank drain connections, large-diameter plumbing\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/1-1-2-uniseal-grommet-white-u150-w\" style=\"color:#dc2626;\"\u003eView U150-W\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eU200-W\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e2\" (50mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e2.375\" (60mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e3\" (76mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e3\/8\" (9mm)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eMain fill\/dump connections, large tank plumbing\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/2-inch-uniseal-grommet-white-pvc-schedule-40-tank-fitting-u200-w\" style=\"color:#dc2626;\"\u003eView U200-W\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 measure your pipe's outer diameter (OD) — not the nominal pipe size — to confirm the correct Uniseal grommet size before ordering.\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 U075-W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Compatibility:\u003c\/strong\u003e PVC Schedule 40, 3\/4\" nominal pipe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Inner Diameter:\u003c\/strong\u003e 3\/4\" (19mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Outer Diameter:\u003c\/strong\u003e 1.050\" (27mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired Hole Saw:\u003c\/strong\u003e 1-1\/4\" (32mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Tank Wall Thickness:\u003c\/strong\u003e 3\/8\" (9mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e UV-Resistant Thermoplastic Elastomer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Method:\u003c\/strong\u003e Compression seal — no adhesives required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e Sold individually (Each)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOne (1) 3\/4\" Uniseal Grommet — White (U075-W)\u003c\/li\u003e\n\u003cli\u003eManufacturer warranty against defects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Models \u0026amp; Alternatives\u003c\/h2\u003e\n\u003cp\u003eNeed a different pipe size? Browse the full Uniseal Grommet lineup: \u003ca href=\"\/products\/1-2-uniseal-grommet-white-pvc-schedule-40-tank-fitting-u050-w\" style=\"color:#dc2626;\"\u003e1\/2\" U050-W\u003c\/a\u003e, \u003ca href=\"\/products\/1-uniseal-grommet-white-u100-w\" style=\"color:#dc2626;\"\u003e1\" U100-W\u003c\/a\u003e, \u003ca href=\"\/products\/1-1-2-uniseal-grommet-white-u150-w\" style=\"color:#dc2626;\"\u003e1-1\/2\" U150-W\u003c\/a\u003e, and \u003ca href=\"\/products\/2-inch-uniseal-grommet-white-pvc-schedule-40-tank-fitting-u200-w\" style=\"color:#dc2626;\"\u003e2\" U200-W\u003c\/a\u003e. Browse our full \u003ca href=\"\/collections\/rv-tank-fittings\" style=\"color:#dc2626;\"\u003eRV Tank Fittings collection\u003c\/a\u003e for additional tank plumbing components.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat hole saw size do I need for the U075-W Uniseal Grommet?\u003c\/h3\u003e\n\u003cp\u003eYou'll need a \u003cstrong\u003e1-1\/4\" (32mm) hole saw\u003c\/strong\u003e to cut the correct opening in your tank for the U075-W grommet. After cutting, smooth any rough edges for the best seal.\u003c\/p\u003e\n\n\u003ch3\u003eIs the U075-W compatible with PVC Schedule 80 pipe?\u003c\/h3\u003e\n\u003cp\u003eThe U075-W is designed and rated for \u003cstrong\u003ePVC Schedule 40 pipe\u003c\/strong\u003e. Schedule 40 and Schedule 80 share the same outer diameter for 3\/4\" nominal pipe, but we recommend using it as specified with Schedule 40 for optimal sealing performance.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I install a 3\/4\" Uniseal grommet?\u003c\/h3\u003e\n\u003cp\u003eCut a 1-1\/4\" hole in your tank wall, smooth the edges, insert the grommet into the hole, then push your 3\/4\" PVC pipe through the grommet. The compression seal forms automatically — no glue or sealant needed. Measure twice before cutting!\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the maximum tank wall thickness for the U075-W?\u003c\/h3\u003e\n\u003cp\u003eThe U075-W accommodates tank walls up to \u003cstrong\u003e3\/8\" (9mm) thick\u003c\/strong\u003e, which covers the vast majority of RV polyethylene holding tanks.\u003c\/p\u003e\n\n\u003ch3\u003eCan I use this grommet for both fresh water and waste water tanks?\u003c\/h3\u003e\n\u003cp\u003eYes — the U075-W is suitable for fresh water, grey water, and black water holding tanks. The UV-resistant thermoplastic elastomer material is safe for potable water applications.\u003c\/p\u003e\n\n\u003ch3\u003eWhere can I buy the U075-W Uniseal Grommet?\u003c\/h3\u003e\n\u003cp\u003eElkhartRVParts.com is an authorized retailer of The Uniseal Warehouse products. Order directly here for guaranteed authentic parts with fast shipping.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Elkhart RV Parts?\u003c\/h2\u003e\n\u003cp\u003eWe are an authorized dealer of The Uniseal Warehouse, meaning every U075-W grommet you purchase from us is 100% genuine OEM-grade. We stock authentic parts, ship fast, and back every order with our 30-day return policy. Our team knows RV plumbing — we're here to make sure you get the right part the first time.\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 order?\u003c\/strong\u003e Add the U075-W to your cart today for fast shipping. Have a question about fitment or compatibility? Use our \u003cstrong\u003eAI Live Chat\u003c\/strong\u003e for instant answers from our RV parts experts.\n\u003c\/div\u003e","brand":"The Uniseal Warehouse","offers":[{"title":"Default Title","offer_id":42237035741336,"sku":"U075-W","price":2.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/files\/3-4-uniseal-grommet-white-pvc-schedule-40-tank-fitting-u075-w-shopify-1.jpg?v=1779182836","url":"https:\/\/elkhartrvparts.com\/products\/3-4-uniseal-grommet-white-pvc-schedule-40-tank-fitting-u075-w","provider":"Elkhart RV Parts","version":"1.0","type":"link"}