{"product_id":"maks-holding-tank-40-x-15-x-7-14-5-gallons-end-center-drain-blank-tank","title":"MAKS Holding Tank 40 X 15 X 7 - 14.5 Gallons - End Center Drain - Blank Tank","description":"\u003cdiv style=\"background-color: #f3f4f6; border-left: 4px solid #1d9bf0; padding: 15px; margin-bottom: 20px;\"\u003e\u003cp style=\"margin: 0; color: #1d9bf0; font-weight: bold;\"\u003e✓ ElkhartRVParts.com - The Only Authorized Place for MAKS Plastics\u003c\/p\u003e\u003c\/div\u003e\u003cdiv style=\"background-color: #f3f4f6; border-left: 4px solid #10b981; padding: 15px; margin-bottom: 20px;\"\u003e\u003cp style=\"margin: 0; color: #10b981; font-weight: bold;\"\u003e✓ 100% Verified Authentic OEM Grade Part\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003eMAKS Holding Tank 15 X 40 X 7 - 14.5 Gallons - End Center Drain - Blank Tank\u003c\/h2\u003e\u003cp\u003eThe MAKS 14.5-gallon holding tank is the ultimate compact solution for ultra-small RVs, camper vans, and extremely space-constrained applications. Measuring just 15 inches by 40 inches by 7 inches, this ultra-narrow blank tank features an end center drain configuration for straightforward plumbing and complete waste evacuation. Built with MAKS Plastics' signature seamless roto-molding technology and UV-stabilized materials, this versatile tank can be configured for black or gray water applications in compact motorhomes, Class B vans, and custom RV builds.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact 14.5-Gallon Capacity:\u003c\/strong\u003e Perfect for ultra-small RVs, camper vans, and extremely tight installations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Narrow Profile:\u003c\/strong\u003e 15-inch width fits in the tightest spaces where standard tanks won't work\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Design:\u003c\/strong\u003e 7-inch height provides good capacity while fitting in limited vertical clearance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Center Drain:\u003c\/strong\u003e Centrally positioned drain ensures complete waste evacuation and simplified plumbing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlank Tank Versatility:\u003c\/strong\u003e Can be configured for black water or gray water applications based on your needs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless Construction:\u003c\/strong\u003e One-piece roto-molded design eliminates leak points and weak seams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUV-Stabilized Materials:\u003c\/strong\u003e Premium polyethylene resists sun damage, cracking, and degradation over years of use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA:\u003c\/strong\u003e Manufactured domestically with strict quality control and engineering standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 15 inches (L) × 40 inches (W) × 7 inches (H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 14.5 gallons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank Type:\u003c\/strong\u003e Blank Holding Tank (black or gray water)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrain Location:\u003c\/strong\u003e End Center\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 120088001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approximately 25 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e UV-stabilized polyethylene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e RV waste water storage\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv style=\"background-color: white; border: 2px solid #dc2626; padding: 20px; margin: 25px 0;\"\u003e\n\u003ch3 style=\"color: #dc2626; margin-top: 0;\"\u003eTop 5 Features That Make MAKS Plastics Tanks the Best on the Market\u003c\/h3\u003e\n\u003cdiv style=\"border-left: 3px solid #e5e7eb; padding-left: 15px; margin-bottom: 15px;\"\u003e\n\u003ch4 style=\"color: #dc2626; margin-bottom: 5px;\"\u003e1. Seamless, Heavy-Duty Roto-Molding\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eMAKS tanks are manufactured using advanced rotational molding technology that creates a single-piece, seamless tank with uniform wall thickness. This eliminates weak points, seams, and potential leak areas that plague welded or multi-piece tanks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 3px solid #e5e7eb; padding-left: 15px; margin-bottom: 15px;\"\u003e\n\u003ch4 style=\"color: #dc2626; margin-bottom: 5px;\"\u003e2. Premium UV-Stabilized Materials Made for Real RV Conditions\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eEvery MAKS tank is molded from high-grade polyethylene with UV inhibitors built into the material itself. This protects against sun exposure, temperature extremes, and chemical degradation from waste products, ensuring your tank won't crack, fade, or fail prematurely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 3px solid #e5e7eb; padding-left: 15px; margin-bottom: 15px;\"\u003e\n\u003ch4 style=\"color: #dc2626; margin-bottom: 5px;\"\u003e3. Precision-Engineered Fit for RV Chassis\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eMAKS doesn't make generic tanks. Each model is designed to fit specific RV chassis configurations with exact dimensions, drain placements, and mounting provisions. This means easier installation, better space utilization, and proper integration with your RV's existing systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 3px solid #e5e7eb; padding-left: 15px; margin-bottom: 15px;\"\u003e\n\u003ch4 style=\"color: #dc2626; margin-bottom: 5px;\"\u003e4. Made in the USA With Full In-House Engineering\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eMAKS Plastics manufactures every tank in the United States with complete control over materials, processes, and quality standards. Their in-house engineering team designs tanks specifically for the demands of RV use, not generic applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 3px solid #e5e7eb; padding-left: 15px; margin-bottom: 15px;\"\u003e\n\u003ch4 style=\"color: #dc2626; margin-bottom: 5px;\"\u003e5. Proven Long-Term Reliability \u0026amp; Lower Lifetime Cost\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eMAKS tanks are built to last decades, not years. The combination of superior materials, seamless construction, and precision engineering means fewer replacements, less maintenance, and lower total cost of ownership compared to budget alternatives.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch3\u003eRV Applications \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eClass B camper vans and Sprinter conversions\u003c\/li\u003e\n\u003cli\u003eUltra-compact motorhomes with extreme space constraints\u003c\/li\u003e\n\u003cli\u003eSmall travel trailers and teardrop campers\u003c\/li\u003e\n\u003cli\u003eWeekend camping rigs with minimal space\u003c\/li\u003e\n\u003cli\u003eRV renovations and custom builds\u003c\/li\u003e\n\u003cli\u003eReplacement for damaged or deteriorated holding tanks\u003c\/li\u003e\n\u003cli\u003eDIY RV conversions requiring ultra-narrow tanks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose MAKS Plastics for Your RV?\u003c\/h3\u003e\u003cp\u003eMAKS Plastics has been the trusted name in RV tank manufacturing for decades, supplying OEM-grade tanks to major RV manufacturers and aftermarket customers. Their commitment to American manufacturing, precision engineering, and quality materials ensures you're getting a tank that will perform reliably for the life of your RV. When you choose MAKS, you're choosing proven durability, exact-fit design, and the peace of mind that comes with genuine OEM-quality components.\u003c\/p\u003e\u003cdiv style=\"background-color: #f3f4f6; border-left: 4px solid #10b981; padding: 15px; margin: 20px 0;\"\u003e\u003cp style=\"margin: 0; font-weight: bold;\"\u003e💡 DIY-FRIENDLY INSTALLATION: This is a straightforward tank replacement that most RV owners can handle with basic tools and mechanical skills. Verify dimensions match your space, secure proper mounting, connect plumbing fittings, and ensure adequate venting. Many RVers successfully install these tanks themselves!\u003c\/p\u003e\u003c\/div\u003e\u003cp\u003e\u003cstrong\u003eNeed help finding the right RV holding tank? Use our AI Live Chat for expert product guidance and RV compatibility assistance.\u003c\/strong\u003e\u003c\/p\u003e","brand":"MAKS Plastics","offers":[{"title":"Default Title","offer_id":47463545536664,"sku":"120088001","price":161.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/files\/engineering_drawing_8b82d366-7b70-403b-9150-5b1ebe803034.png?v=1773085540","url":"https:\/\/elkhartrvparts.com\/products\/maks-holding-tank-40-x-15-x-7-14-5-gallons-end-center-drain-blank-tank","provider":"Elkhart RV Parts","version":"1.0","type":"link"}