{"product_id":"elkhart-plastics-30-gallon-rv-holding-tank-epi-4414-h1238000","title":"Elkhart Plastics - 30 Gallon RV Holding Tank - 62\" x 26\" x 6.75\" - EPI 4414 H1238000 Black Polyethylene OEM - Blank Tank No Fittings","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\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\u003eElkhart Plastics 30 Gallon RV Holding Tank (EPI 4414 \/ H1238000)\u003c\/strong\u003e is a direct OEM-grade replacement for black water and gray water systems in a wide range of recreational vehicles. At \u003cstrong\u003e62\" x 26\" x 6.75\"\u003c\/strong\u003e, this low-profile tank is engineered for tight undercarriage spaces where standard-depth tanks simply won't fit.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures \u0026amp; Specifications\u003c\/h2\u003e\n\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 62\" x 26\" x 6.75\" (L x W x H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Numbers:\u003c\/strong\u003e EPI 4414 \/ H1238000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness:\u003c\/strong\u003e 0.180\" black high-density polyethylene (HDPE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet:\u003c\/strong\u003e Standard 3\" outlet included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Seamless roto-molded — equal wall thickness, no weak spots\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e Manufactured to meet quality and health safety standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the EPI 4414 \/ H1238000 Holding Tank?\u003c\/h2\u003e\n\u003cp\u003eElkhart Plastics' roto-molding process creates a \u003cstrong\u003eseamless, uniform-wall tank\u003c\/strong\u003e that resists road vibration, impacts, and the corrosive nature of waste water. Unlike injection-molded alternatives, there are no seams or weld lines to fail over time.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e6.75\" profile\u003c\/strong\u003e makes this 30 gallon RV holding tank one of the lowest-profile options available at this capacity — ideal for slide-outs, low-floor coaches, and fifth wheels with limited undercarriage clearance. The standard 3\" outlet ensures compatibility with most RV plumbing configurations right out of the box.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: The sealed hole on top of the tank is from the manufacturing process — it is a venting hole used during roto-molding and has no functional use for the end user.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCompare 30 Gallon RV Holding Tanks\u003c\/h2\u003e\n\u003cp\u003eNot sure which tank fits your rig? Compare the EPI 4414 against similar-capacity Elkhart Plastics holding tanks below to find the right dimensions for your application.\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;\"\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\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\n\u003cstrong\u003eEPI 4414 \/ H1238000\u003c\/strong\u003e (This Item)\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;\"\u003e62\" x 26\" x 6.75\"\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eUltra-Low (6.75\")\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eTight undercarriage, low-floor coaches\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eEPI 4339 \/ H1259000\u003c\/strong\u003e\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 (6.125\")\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eWidest low-profile option\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/elkhart-plastics-30-gallon-rv-holding-tank-4339-h1259\" style=\"color:#dc2626;\"\u003eView\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eEPI 1433 \/ H866\u003c\/strong\u003e\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;\"\u003eStandard (8\")\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eCompact footprint, standard clearance\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003ca href=\"\/products\/rv-plumbingrv-holding-tanks30-gallon-rv-holding-tank-54-x-22-x-8\" style=\"color:#dc2626;\"\u003eView\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eEPI 2873 \/ H1128\u003c\/strong\u003e\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 (7\")\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #e5e7eb;\"\u003eNear-30 gal with slightly more depth\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\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 existing tank's footprint (L x W x H) before ordering. Even a 0.5\" difference in height can affect fitment in low-clearance bays.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\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 62\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 26\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 6.75\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Thickness:\u003c\/strong\u003e 0.180\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Black high-density polyethylene (HDPE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Size:\u003c\/strong\u003e 3\" (standard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing Process:\u003c\/strong\u003e Roto-molded (seamless)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Numbers:\u003c\/strong\u003e EPI 4414, H1238000, H1238\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 25 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHS Code:\u003c\/strong\u003e 392510\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x Elkhart Plastics 30 Gallon RV Holding Tank (EPI 4414 \/ H1238000)\u003c\/li\u003e\n\u003cli\u003eStandard 3\" outlet pre-installed\u003c\/li\u003e\n\u003cli\u003eManufacturer quality certification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Additional fittings, vents, and sensors are sold separately. This listing is for the blank tank with no additional fittings.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCompatible Models \u0026amp; Related Products\u003c\/h2\u003e\n\u003cp\u003eLooking for a different size or configuration? Browse our full selection of Elkhart Plastics holding tanks:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/elkhart-plastics-30-gallon-rv-holding-tank-4339-h1259\" style=\"color:#dc2626;\"\u003e30 Gallon - 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 - EPI 2873 \/ H1128 (60\" x 28\" x 7\")\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/elkhart-plastics-29-gallon-rv-holding-tank-h1296-45x15-5x12-375\" style=\"color:#dc2626;\"\u003e29 Gallon - H1296 (45\" x 15.5\" x 12.375\")\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between EPI 4414 and H1238000?\u003c\/strong\u003e\u003cbr\u003eThese are the same tank — EPI 4414 is the Elkhart Plastics internal model number, while H1238000 is the distributor\/OEM part number. Both refer to the identical 30 gallon, 62\" x 26\" x 6.75\" tank.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this tank compatible with my RV?\u003c\/strong\u003e\u003cbr\u003eThis tank is a direct OEM replacement for any RV originally fitted with EPI 4414 or H1238000. Always verify your existing tank's dimensions (62\" x 26\" x 6.75\") and outlet location before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I install a 30 gallon RV holding tank?\u003c\/strong\u003e\u003cbr\u003eInstallation typically involves draining and removing the existing tank, transferring fittings and sensors, and securing the new tank with the original straps or brackets. We recommend consulting your RV's service manual or a certified RV technician.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the sealed hole on top of the tank?\u003c\/strong\u003e\u003cbr\u003eThat hole is a manufacturing vent used during the roto-molding process. It is permanently sealed and has no functional purpose for the end user — it does not need to be connected to anything.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this tank be used for both black water and gray water?\u003c\/strong\u003e\u003cbr\u003eYes. This polyethylene tank is chemically compatible with both black water (toilet waste) and gray water (sink\/shower drain) applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere can I buy the EPI 4414 holding tank?\u003c\/strong\u003e\u003cbr\u003eElkhartRVParts.com is the authorized source for genuine Elkhart Plastics OEM tanks. Purchasing here ensures you receive an authentic, quality-certified part.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Elkhart RV Parts?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAuthorized Elkhart Plastics dealer — guaranteed authentic OEM parts\u003c\/li\u003e\n\u003cli\u003eUSA-manufactured tanks with roto-molded seamless construction\u003c\/li\u003e\n\u003cli\u003eExpert product knowledge — we stock what we sell\u003c\/li\u003e\n\u003cli\u003eCompetitive pricing with fast freight shipping\u003c\/li\u003e\n\u003cli\u003eHassle-free returns and dedicated customer support\u003c\/li\u003e\n\u003c\/ul\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 or need help confirming fitment?\u003c\/strong\u003e\u003cbr\u003eUse our AI Live Chat for instant assistance matching this tank to your specific RV make, model, and year. We're here to make sure you get the right part the first time.\n\u003c\/div\u003e","brand":"Elkhart Plastics\/Ameri-Kart","offers":[{"title":"Default Title","offer_id":42513755078808,"sku":"H1238000","price":259.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/products\/4414-2__77534.png?v=1584468151","url":"https:\/\/elkhartrvparts.com\/products\/elkhart-plastics-30-gallon-rv-holding-tank-epi-4414-h1238000","provider":"Elkhart RV Parts","version":"1.0","type":"link"}