---
✓ ElkhartRVParts.com - The Only Authorized Place for Elkhart Plastics
✓ 100% Verified Authentic OEM Grade Part
Finding the right 30 gallon RV holding tank with precise dimensions can be challenging when you need a reliable replacement that fits your specific RV configuration. The Elkhart Plastics 30 Gallon RV Holding Tank (H1256003) delivers professional-grade performance with its 60" x 28" x 6" profile and right end recessed drain positioning, engineered specifically for waste management systems requiring this exact footprint.
Features & Specifications
- Precise Dimensions: 60" length x 28" width x 6" height with right end recessed drain configuration for exact OEM replacement fit
- Premium Roto-Molded Construction: Seamless high-density polyethylene with uniform 0.180" wall thickness eliminates weak spots and prevents leaks
- 30 Gallon Capacity: Optimal holding capacity for mid-size RVs, travel trailers, and motorhomes with space-constrained installations
- Blank Tank Design: Ships without pre-installed fittings, allowing custom configuration with separately available fittings kits for your specific plumbing setup
- Health & Safety Certified: Manufactured to meet quality and health safety standards with fewer impurities for secure fresh water or waste storage
- Impact Resistant: Roto-molded process creates durable construction that withstands road vibration, temperature extremes, and physical impacts
- OEM Grade Quality: Elkhart Plastics reputation for manufacturing tanks trusted by RV manufacturers and professional technicians nationwide
Why Choose the Elkhart Plastics 30 Gallon RV Holding Tank?
When your RV's holding tank fails, you need a replacement that matches your original equipment specifications exactly. This 30 gallon RV holding tank from Elkhart Plastics uses advanced roto-molding technology where high-density plastic is rotated and molded into a seamless shape with equal wall thickness throughout. Unlike cheaper welded or seamed tanks that develop leaks at joints, this seamless construction eliminates failure points entirely. The right end recessed drain positioning ensures proper drainage and compatibility with your existing plumbing configuration, while the blank tank design gives you complete control over fitting placement. Whether you're replacing a black water tank, gray water tank, or configuring a custom waste management system, this tank delivers the durability and precision fit that RV owners and mobile technicians demand.
Compare 30 Gallon RV Holding Tanks
Not sure which 30 gallon holding tank is right for your RV? Compare the specifications of similar capacity tanks to find the perfect fit for your space and drain configuration:
| Model (Part Number) | Dimensions | Capacity | Best For | View Details |
|---|---|---|---|---|
| H1256003 | 60" x 28" x 6" | 30 Gallons | Low-profile installations, right drain positioning | Current Product |
| H1259003 | 60" x 28" x 6.125" | 30 Gallons | Nearly identical profile, slightly taller | View H1259003 |
| H1238000 | 62" x 26" x 6.75" | 30 Gallons | Longer, narrower footprint for tight spaces | View H1238000 |
| H866033 | 54" x 22" x 8" | 30 Gallons | Shorter length, increased height for vertical clearance | View H866033 |
| 4692/H1255 | 47.5" x 24.5" x 8" | 30 Gallons | Compact length for smaller RV chassis | View 4692/H1255 |
Pro Tip: Always measure your existing tank compartment carefully before ordering. Even small dimensional differences can affect installation, especially in tight underbelly spaces. If you're unsure about fitment, our AI Live Chat can help verify compatibility.
Technical Specifications
- Part Numbers: H1256003, EPI 4273, H1256 (cross-reference)
- Capacity: 30 gallons
- Dimensions: 60" L x 28" W x 6" H
- Wall Thickness: 0.180 inches
- Material: High-density polyethylene (HDPE)
- Construction: Seamless roto-molded
- Drain Position: Right end recessed
- Fittings: Blank tank (fittings sold separately)
- Weight: Lightweight for easier installation
- Color: Black polyethylene
- Application: Black water, gray water, or holding tank replacement
- Manufacturer: Elkhart Plastics/Ameri-Kart
What's Included
- One (1) Elkhart Plastics 30 Gallon RV Holding Tank - H1256003
- Blank tank with no pre-installed fittings (allows custom configuration)
- Elkhart Plastics quality certification and manufacturing standards compliance
- Note: Fittings, drain valves, vent caps, and mounting hardware sold separately - browse our fittings kits to complete your installation
- Warranty: Backed by Elkhart Plastics manufacturing quality standards
Compatible Models & Alternatives
This 30 gallon holding tank is compatible with a wide range of RV models requiring 60" x 28" x 6" tank dimensions. Looking for related products or different configurations?
- Similar Capacity Alternative: H1259003 - 60" x 28" x 6.125" (nearly identical dimensions)
- Fittings & Hardware: Browse our complete selection of RV tank fittings, drain valves, vent caps, and installation accessories
- Different Dimensions: Explore our full collection of Elkhart Plastics holding tanks in various sizes and configurations
- Installation Supplies: Tank mounting straps, sealants, and plumbing connectors available
Frequently Asked Questions
How do I install this 30 gallon RV holding tank?
Installation requires removing your old tank, positioning the new H1256003 tank in the compartment, securing with mounting straps, and connecting fittings for drain, vent, and inlet connections. Since this is a blank tank, you'll need to install fittings separately using appropriate hole saws and sealants. We recommend professional installation if you're not experienced with RV plumbing systems.
Is this compatible with my RV model?
This tank fits any RV with a 60" x 28" x 6" tank compartment and right end recessed drain configuration. Measure your existing tank or compartment space carefully before ordering. Common applications include travel trailers, fifth wheels, and motorhomes originally equipped with Elkhart Plastics tanks with these dimensions.
What fittings do I need for installation?
You'll need drain fittings, vent fittings, inlet fittings, and potentially a tank monitor sensor depending on your RV's configuration. Browse our fittings kits or contact us via AI Live Chat with your specific requirements for personalized recommendations.
Can this be used for both black water and gray water?
Yes, this tank is suitable for black water (toilet waste), gray water (sink/shower drainage), or even fresh water holding applications. The high-density polyethylene construction meets health and safety standards for all RV water storage needs.
What's the difference between this and the H1259003 model?
The H1259003 has nearly identical dimensions (60" x 28" x 6.125") with just 0.125" additional height. Both are 30 gallon capacity tanks from Elkhart Plastics. Choose based on your exact compartment clearance - if you have tight vertical space, the H1256003 at 6" height is the better choice.
Does this tank come with a warranty?
This tank is backed by Elkhart Plastics' manufacturing quality standards. As an authorized Elkhart Plastics dealer, we guarantee authentic OEM grade parts. Contact us for specific warranty details and coverage information.
Why Buy from Elkhart RV Parts?
As the only authorized online retailer for Elkhart Plastics RV tanks, we guarantee 100% authentic OEM grade parts - never aftermarket imitations. Every tank ships with verified quality certifications and meets the same exacting standards used by RV manufacturers. Our expert team understands RV plumbing systems and can help you select the right tank, fittings, and accessories for your specific installation. We offer fast shipping, secure packaging for large items, and comprehensive support from selection through installation.
Ready to replace your RV holding tank? Add the H1256003 to your cart now or chat with our AI Live Chat for expert fitment assistance and fittings recommendations.
| Material | High-density plastic |
|---|---|
| Drain position | Right end recessed |
| Width (inches) | 28 |
| Height (inches) | 6 |
| Length (inches) | 60 |
| Capacity (gallons) | 30 |
| Wall thickness (inches) | 0.18 |
- What are the dimensions of the 30 gallon rv holding tank? The dimensions of the tank are 60 inches by 28 inches by 6 inches.
- Is the 30 gallon rv holding tank sold with fittings? No, the tank is sold blank with no fittings. Fittings can be added per quote.
- What is the wall thickness of the 30 gallon rv holding tank? The wall thickness of the tank is 0.180 inches.
- How is the 30 gallon rv holding tank manufactured? The tank is manufactured using roto-molding, a process where high-density plastic is rotated and molded into shape creating a seamless tank with walls of equal thickness.
- Is this tank suitable for fresh water storage? Yes, Elkhart Plastic tanks are manufactured to meet quality and health safety standards and are strong enough to securely store fresh water.
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.