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53 Gallon RV Holding Tank - Premium Rotomolded Construction
Upgrade your RV's waste management system with this professional-grade 53-gallon holding tank from Elkhart Plastics. Engineered for durability and reliability, this tank is the perfect solution for black water or gray water storage in motorhomes, travel trailers, and campers.
Key Specifications
- Capacity: 53 gallons
- Dimensions: 28" L x 26" W x 22.5" H
- Outlet Size: 3" standard (included)
- Wall Thickness: 0.180" heavy-duty construction
- Material: Black polyethylene (rotomolded)
- Part Numbers: EPI 9556H, H1301003, MRM 9556, ERV127700A, T9556H54
- SKU: MRM-9556H
- Barcode: 68860568
Why Choose Elkhart Plastics Holding Tanks?
Rotomolded Excellence: Unlike cheaper welded tanks, Elkhart Plastics uses advanced rotational molding technology to create seamless, one-piece tanks with uniform wall thickness throughout. This eliminates weak spots, seams, and potential failure points that plague inferior tanks.
Superior Strength & Durability: The 0.180" thick walls are engineered to withstand the constant vibration, road shock, and temperature extremes your RV experiences. High-density polyethylene construction resists cracking, warping, and UV degradation for years of reliable service.
Health & Safety Certified: Manufactured to meet strict quality and health safety standards with fewer impurities than competitor tanks. Safe for both black water (sewage) and gray water (sink/shower) applications.
Perfect For These Applications
- Black water holding tank replacement
- Gray water holding tank upgrade
- Motorhome waste system repair
- Travel trailer plumbing renovation
- Fifth wheel holding tank replacement
- Custom RV build projects
- Commercial RV fleet maintenance
Compatible RV Brands
This tank is OEM-spec and works with Rev Group, Renegade, and many other major RV manufacturers. Verify your existing tank dimensions before ordering to ensure proper fitment.
Important Manufacturing Note
About the Sealed Hole on Top: You may notice a sealed hole on the top of the tank - this is completely normal and intentional. This is a venting hole used during the rotomolding manufacturing process and has been permanently sealed. It serves no functional purpose for the end user and does not affect the tank's performance or integrity.
What's Included
- 1x 53-gallon rotomolded holding tank
- Standard 3" outlet fitting
- Elkhart Plastics quality certification
Installation & Compatibility
This tank measures 28" x 26" x 22.5" - please measure your existing tank compartment carefully before ordering. Professional installation is recommended to ensure proper mounting, venting, and connection to your RV's plumbing system.
Need help identifying the right tank or have questions about compatibility? Use our AI Live Chat for instant product assistance and expert guidance.
Order your genuine Elkhart Plastics 53-gallon RV holding tank today and experience the difference that OEM-quality construction makes.
| Material | Black polyethylene |
|---|---|
| Width (inches) | 26 |
| Height (inches) | 22.5 |
| Length (inches) | 28 |
| Weight (pounds) | 40 |
| Capacity (gallons) | 53 |
| Outlet size (inches) | 3 |
| Wall thickness (inches) | 0.18 |
- What is the capacity of the 53 gallon rv holding tank? The tank has a capacity of 53 gallons.
- What are the dimensions of this rv holding tank? The tank measures 28 inches in length, 26 inches in width, and 22.5 inches in height.
- Does the tank come with an outlet, and what size is it? Yes, all tanks come standard with a 3-inch outlet.
- What material is the holding tank made from? The tank is made from black polyethylene with a wall thickness of 0.180 inches.
- What is the purpose of the sealed hole on top of the tank? The sealed hole on top is a venting hole used during the manufacturing process and has no functional use for the end-user.
Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.



