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Premium 100 Gallon RV Fresh Water Tank - Built to Last
Upgrade your RV's water storage with this premium 100-gallon fresh water tank from Elkhart Plastics. Engineered with rotomolded construction and FDA-approved polyethylene, this tank delivers superior durability and safe drinking water storage for your travels.
Key Features & Specifications
- Capacity: 100 Gallons
- Dimensions: 48" x 26" x 20"
- Part Numbers: EPI 0602W / W1344
- Material: Virgin High Density Polyethylene (FDA Approved)
- Wall Thickness: 1/4"
- Construction: Rotomolded for Maximum Durability
- Quality Control: 100% Leak Tested via Submersion Process
- Made in USA
Why Choose This RV Water Tank?
100% Authentic OEM-Quality Construction: These rotational molded fresh water tanks are crafted to meet or exceed factory standards, making them a perfect upgrade or replacement for your RV, horse trailer, or marine vessel.
Premium FDA-Approved Material: Made from high-quality, durable polyethylene that's fully approved for safe drinking water storage—better than many stock tanks installed in factory-built RVs.
Seamless One-Piece Construction: Engineered without seams or joints for superior strength and leak-proof reliability, outlasting and outperforming typical OEM tanks.
Stain, Corrosion, and Rust Resistant: Designed to stay clean and functional even after years of use, ensuring your water stays fresh and your tank stays dependable.
Perfect For Multiple Applications
This versatile 100-gallon water tank is ideal for:
- RV and motorhome fresh water systems
- Horse trailers and livestock transport
- Marine vessels and boats
- Off-grid cabins and tiny homes
- Emergency water storage
Superior Durability You Can Trust
Built tougher than many standard factory-installed tanks, this Elkhart Plastics water tank offers peace of mind whether you're replacing an old tank or upgrading your setup. The rotomolded construction creates a seamless, one-piece design that eliminates weak points and potential leak areas.
Compare 100 Gallon Fresh Water Tank Options
| Model | Capacity | Dimensions | Part Number | Best For | View Details |
|---|---|---|---|---|---|
|
Elkhart Plastics W1344 ⬅ Current Product |
100 Gallons | 48" x 26" x 20" | W1344 / EPI 0602W | Compact height, wider footprint | View Details |
| T100 | 100 Gallons | 81" x 26" x 11" | T100 | Low profile, longer length | View Details |
| Elkhart Plastics 171W | 98 Gallons | 64" x 26" x 15" | 171W / EPI 171W | Slightly smaller capacity, mid-range dimensions | View Details |
💡 Tip: Choose based on your available space. The W1344 offers a more compact height (20") with a wider footprint, while the T100 is longer (81") but lower profile (11"). Both provide the same 100-gallon capacity with premium FDA-approved construction.
Related Products
Looking for different sizes? Check out our 98 Gallon RV Fresh Water Tank 64x26x15 or browse our complete 100 Gallon RV Fresh Water Tanks Collection. Shop all Elkhart Plastics products for premium RV parts.
Frequently Asked Questions
What RV models is this 100-gallon fresh water tank compatible with?
This tank is designed as a universal replacement for RVs, motorhomes, horse trailers, and marine vessels with similar dimensional requirements (48" x 26" x 20"). Always measure your existing tank space before ordering.
Is this tank safe for drinking water storage?
Yes, this tank is made from FDA-approved virgin high-density polyethylene specifically designed for potable water storage, ensuring your drinking water remains safe and uncontaminated.
How does rotomolded construction improve durability?
Rotomolded construction creates a seamless, one-piece tank without joints or seams, eliminating weak points where leaks typically occur. This process produces a stronger, more durable tank than traditional manufacturing methods.
What's the difference between the W1344 and T100 models?
Both hold 100 gallons, but the W1344 (48" x 26" x 20") has a more compact height with a wider footprint, while the T100 (81" x 26" x 11") is longer with a lower profile. Choose based on your available installation space.
Does this tank come with fittings or installation hardware?
This tank is sold as the tank body only. Fittings, straps, and installation hardware are sold separately. Browse our RV plumbing fittings section for compatible accessories.
Need Help Choosing the Right Tank?
Our AI Live Chat can help you find the perfect water tank for your specific RV model and installation requirements. Get instant answers about compatibility, dimensions, and installation.
Order your premium 100-gallon RV fresh water tank today and enjoy reliable, safe water storage for all your adventures!
| Material | Polyethylene |
|---|---|
| Width (inches) | 26 |
| Height (inches) | 11 |
| Length (inches) | 81 |
| Weight (pounds) | 45 |
| Capacity (gallons) | 100 |
| Wall thickness (inches) | 0.25 |
- What is the capacity of the 100 gallon rv fresh water tank? The tank has a capacity of 100 gallons.
- What material is the fresh water tank made from? The tank is made from virgin high density polyethylene, which is FDA-approved for safe drinking water storage.
- What are the dimensions of this rv fresh water tank? The tank measures 81 inches in length, 26 inches in height, and 11 inches in width.
- Is this fresh water tank durable and leak-proof? Yes, the tank is rotomolded with a 1/4 inch wall thickness, has seamless one-piece construction, and is 100% leak tested using a submersing quality process for durability and leak-proof reliability.
- Is this tank suitable for uses other than rvs? Yes, this fresh water tank is versatile and compatible for use in RVs, horse trailers, and marine vessels.
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.


