{"product_id":"elkhart-plastics-30-gallon-rv-holding-tank-54-x-22-x-8-epi-1433-h866","title":"Elkhart Plastics - 30 Gallon RV Holding Tank - 54\" x 22\" x 8\" - Blank Tank - EPI 1433 \/ H866","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 Elkhart Plastics\u003c\/strong\u003e\u003c\/div\u003e\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\u003ch2\u003eReplace Your RV Holding Tank with Confidence\u003c\/h2\u003e\u003cp\u003eThe Elkhart Plastics 30 gallon RV holding tank (EPI 1433 \/ H866) is a direct OEM-grade replacement for gray water and black water systems in a wide range of travel trailers, fifth wheels, and motorhomes. At 54\" x 22\" x 8\", this blank tank ships without fittings so you can customize the plumbing layout to match your exact rig — no cutting corners, no compromises.\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 30 gallons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 54\" x 22\" x 8\" (L x W x H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Numbers:\u003c\/strong\u003e EPI 1433 \/ H866\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Blank tank — no fittings included, fully customizable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Seamless rotational-molded black polyethylene — corrosion-proof and odor-resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 65 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose This 30 Gallon RV Holding Tank?\u003c\/h2\u003e\u003cp\u003eWhen your holding tank cracks, leaks, or simply wears out, you need a replacement that fits right the first time. This 30 gallon RV holding tank from Elkhart Plastics is built to OEM specifications, meaning it matches the original factory dimensions exactly. The blank design gives you full control over fitting placement — ideal for custom builds, retrofits, or replacing a tank with a non-standard drain configuration.\u003c\/p\u003e\u003cp\u003eElkhart Plastics is one of the most trusted names in RV tank manufacturing, supplying major OEMs directly from their Indiana facility. When you order through ElkhartRVParts.com, you're getting the same tank that came in your rig from the factory — not an aftermarket imitation.\u003c\/p\u003e\u003ch2\u003eCompare RV Holding Tanks\u003c\/h2\u003e\u003cp\u003eNot sure if this is the right tank for your rig? Compare it against similar Elkhart Plastics holding tanks below to find the best fit by capacity and dimensions.\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-family:sans-serif;font-size:14px;\"\u003e\n\u003cthead\u003e\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;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #e5e7eb;text-align:left;\"\u003eDimensions (L x W x H)\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #e5e7eb;text-align:left;\"\u003eProfile\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\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\n\u003cstrong\u003eEPI 1433 \/ H866\u003c\/strong\u003e (This Product)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e30 gal\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e54\" x 22\" x 8\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eLow-profile, wide\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eTravel trailers, custom builds\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;\"\u003eEPI 4339 \/ H1259000\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e30 gal\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e60\" x 28\" x 6.125\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eUltra-low profile\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eTight floor clearance applications\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/elkhart-plastics-30-gallon-rv-holding-tank-4339-h1259000\" style=\"color:#dc2626;\"\u003eView Details\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eEPI 2873 \/ H1128\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e29 gal\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e60\" x 28\" x 7\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eLow-profile\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eFifth wheels, wider bays\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/elkhart-plastics-29-gallon-rv-holding-tank-2873-h1128\" style=\"color:#dc2626;\"\u003eView Details\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eEPI 1299\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e20 gal\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e23.75\" x 19\" x 13.625\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eCompact \/ tall\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eClass B vans, compact builds\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/elkhart-plastics-20-gallon-rv-black-water-tank-epi-1299\" style=\"color:#dc2626;\"\u003eView Details\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp style=\"font-size:13px;color:#6b7280;margin-top:8px;\"\u003e\u003cem\u003eTip: Match your replacement tank by length and width first — height (depth) is usually the most flexible dimension in most RV bays.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 30 gallons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 54\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 22\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Numbers:\u003c\/strong\u003e EPI 1433 \/ H866 \/ H866033 \/ 1433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e H866033\/1433\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Rotational-molded black polyethylene (HDPE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFittings:\u003c\/strong\u003e None — blank tank, fully customizable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight:\u003c\/strong\u003e 65 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Applications:\u003c\/strong\u003e Gray water, black water, waste holding\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e1x Elkhart Plastics 30 gallon RV holding tank (EPI 1433 \/ H866)\u003c\/li\u003e\n\u003cli\u003eNo fittings included — blank tank configuration\u003c\/li\u003e\n\u003cli\u003eManufacturer warranty per Elkhart Plastics standard terms\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatible Models \u0026amp; Alternatives\u003c\/h2\u003e\u003cp\u003eLooking for a different size or configuration? Browse related Elkhart Plastics holding tanks:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/elkhart-plastics-30-gallon-rv-holding-tank-4339-h1259000\" style=\"color:#dc2626;\"\u003e30 Gallon Ultra-Low Profile Tank — EPI 4339 \/ H1259000 (60\" x 28\" x 6.125\")\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/elkhart-plastics-29-gallon-rv-holding-tank-2873-h1128\" style=\"color:#dc2626;\"\u003e29 Gallon RV Holding Tank — EPI 2873 \/ H1128 (60\" x 28\" x 7\")\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/elkhart-plastics-20-gallon-rv-black-water-tank-epi-1299\" style=\"color:#dc2626;\"\u003e20 Gallon Compact Black Water Tank — EPI 1299 (23.75\" x 19\" x 13.625\")\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDoes this tank come with fittings?\u003c\/h3\u003e\u003cp\u003eNo — the EPI 1433 \/ H866 is a blank tank with no pre-drilled fittings. This allows you to customize the drain, inlet, and vent locations to match your specific RV plumbing layout.\u003c\/p\u003e\u003ch3\u003eIs this compatible with gray water and black water systems?\u003c\/h3\u003e\u003cp\u003eYes. The rotational-molded black polyethylene construction is chemically resistant and suitable for both gray water (sinks, shower) and black water (toilet) holding applications.\u003c\/p\u003e\u003ch3\u003eHow do I know if this tank will fit my RV?\u003c\/h3\u003e\u003cp\u003eMeasure your existing tank's length, width, and height (depth). The EPI 1433 measures 54\" x 22\" x 8\". Also verify your bay opening dimensions and drain outlet location before ordering.\u003c\/p\u003e\u003ch3\u003eWhat is the wall thickness of this tank?\u003c\/h3\u003e\u003cp\u003eElkhart Plastics uses a standard 0.180\" wall thickness on their rotational-molded holding tanks, providing excellent durability for long-term RV use.\u003c\/p\u003e\u003ch3\u003eCan I order this tank with fittings pre-installed?\u003c\/h3\u003e\u003cp\u003eThis listing is for the blank tank only. Contact our team via the AI Live Chat on this page for assistance sourcing compatible fittings or a pre-fitted configuration.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Elkhart RV Parts?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAuthorized Elkhart Plastics dealer — 100% authentic OEM-grade parts\u003c\/li\u003e\n\u003cli\u003eShips direct from our Elkhart, Indiana warehouse\u003c\/li\u003e\n\u003cli\u003eExpert support via AI Live Chat — get fitment help before you buy\u003c\/li\u003e\n\u003cli\u003eHassle-free returns and manufacturer warranty support\u003c\/li\u003e\n\u003cli\u003eTrusted by RV technicians, dealers, and DIY owners nationwide\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv style=\"background:#f3f4f6;border-left:4px solid #dc2626;padding:16px;margin-top:24px;\"\u003e\n\u003cstrong style=\"color:#dc2626;\"\u003eReady to replace your holding tank?\u003c\/strong\u003e Add to cart now or use our AI Live Chat for expert fitment assistance — we'll make sure you get the right tank the first time.\u003c\/div\u003e","brand":"Elkhart Plastics\/Ameri-Kart","offers":[{"title":"Default Title","offer_id":32789626945595,"sku":"H866033\/1433","price":345.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/products\/Holding_Tank_1433__33401__73641.jpg?v=1584468065","url":"https:\/\/elkhartrvparts.com\/products\/elkhart-plastics-30-gallon-rv-holding-tank-54-x-22-x-8-epi-1433-h866","provider":"Elkhart RV Parts","version":"1.0","type":"link"}