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30 Gallon RV Holding Tank - Premium Elkhart Plastics Quality
This 30 gallon RV holding tank (EPI 4339/H1259000) is a professional-grade black or gray water storage solution manufactured by Elkhart Plastics, the industry leader in RV tank manufacturing. Measuring 60" x 28" x 6 1/8" with a 3" outlet, this tank is engineered for reliable performance in recreational vehicles, motorhomes, and travel trailers.
Why Choose This Elkhart Plastics Holding Tank?
Elkhart Plastics has earned its reputation as the premier manufacturer of RV holding tanks through decades of innovation and quality craftsmanship. This 30 gallon tank features:
- Roto-Molded Construction: Seamless design with uniform 0.180" wall thickness eliminates weak spots and ensures long-lasting durability
- High-Density Black Polyethylene: Superior strength to withstand road vibrations, impacts, and temperature variations
- Health & Safety Certified: Manufactured with fewer impurities to meet strict quality and safety standards for water storage
- OEM Grade Quality: Same specifications used by major RV manufacturers
- 3" Outlet Configuration: Standard fitting size for easy installation (custom fittings available upon request)
Technical Specifications
- Capacity: 30 gallons
- Dimensions: 60" L x 28" W x 6 1/8" H
- Outlet Size: 3" diameter
- Wall Thickness: 0.180"
- Material: Black polyethylene (high-density)
- Weight: 25 lbs
- Part Numbers: EPI 4339, H1259000
- Manufacturing Process: Rotational molding
- Country of Origin: USA
Perfect For
- RV black water tank replacement
- RV gray water tank replacement
- Motorhome holding tank upgrades
- Travel trailer waste water storage
- Fifth wheel tank replacement
- Custom RV builds and conversions
Compatible & Alternative Tanks
Looking for similar options? This tank shares the same configuration as the EPI 2873. We also recommend checking out these compatible alternatives:
- 29 Gallon RV Holding Tank EPI 2872/H1129 - Very similar dimensions, direct replacement option
- 29 Gallon RV Holding Tank EPI 2873/H1128 - Same configuration, slightly different height
- 29 Gallon RV Holding Tank H1296 - Compact alternative for tight spaces
- 23 Gallon RV Holding Tank EPI 3366 - Smaller capacity option
The Elkhart Plastics Difference
What sets Elkhart Plastics apart from other tank manufacturers? Their proprietary rotational molding process creates a completely seamless tank where high-density plastic is rotated and molded into shape. Unlike welded or seamed tanks, this process ensures:
- No weak points or seams that could fail over time
- Consistent wall thickness throughout the entire tank
- Superior resistance to cracking, warping, and leaking
- Longer service life even under harsh conditions
Important Manufacturing Note
Note: The sealed hole on top of the tank is from the manufacturing process. It is a venting hole used during tank creation and has no functional use for the end-user. This is normal and does not affect tank performance.
Installation & Customization
This tank comes with a standard 3" outlet. Custom fittings, adapters, and additional ports can be added per quote. Need help with installation or have questions about compatibility with your specific RV model? Our AI Live Chat can provide deep product knowledge and technical assistance.
Frequently Asked Questions
Q: Can this tank be used for both black and gray water?
A: Yes, this tank is suitable for both black water (toilet waste) and gray water (sink/shower drainage) applications.
Q: Is this tank made in the USA?
A: Yes, this Elkhart Plastics tank is manufactured in the United States to OEM quality standards.
Q: What's the difference between EPI 4339 and H1259000?
A: These are simply different part number systems for the same tank - EPI is the Elkhart Plastics Inc. number, while H1259000 is the internal manufacturing code.
Q: Will this fit my RV?
A: Please verify your existing tank dimensions before ordering. This tank measures 60" x 28" x 6 1/8". Use our AI Live Chat for help with fitment questions.
Why Buy From ElkhartRVParts.com?
- ✓ Authorized Elkhart Plastics dealer - 100% authentic OEM parts
- ✓ Fast nationwide shipping from our fulfillment centers
- ✓ Expert support via AI Live Chat for product questions
- ✓ Competitive pricing on premium RV components
- ✓ Trusted by RV owners and professional installers
Ready to upgrade your RV's holding tank system? Order your authentic Elkhart Plastics 30 gallon holding tank today and experience the quality difference that comes from America's leading RV tank manufacturer.
| Material | Black polyethylene |
|---|---|
| Width (inches) | 28 |
| Height (inches) | 6.125 |
| Length (inches) | 60 |
| Capacity (gallons) | 30 |
| Wall thickness (inches) | 0.18 |
| Outlet diameter (inches) | 3 |
- What are the dimensions of the 30 gallon rv holding tank? The tank measures 60 inches in length, 28 inches in width, and 6 1/8 inches in height.
- What material is the 30 gallon rv holding tank made of? It is made of black polyethylene with a wall thickness of 0.180 inches.
- Does the tank come with fittings included? No, fittings are not included but can be added per quote.
- What is the purpose of the sealed hole on top of the tank? The sealed hole is a venting hole used during the manufacturing process and has no functional use for the end-user.
- Is this tank similar to any other models? Yes, it is very similar to tank #2872/H1129 and has the same configuration as tank #2873.
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.


