Elkhart RV Parts - 100 Gallon RV Fresh Water Tank 81x26x11 T100 OEM Grade Polyethylene

Upgrade your water storage with this 100-gallon RV fresh water tank, crafted from FDA-approved, high-density polyethylene for safe drinking water. Its seamless, rotomolded design ensures exceptional durability and leak-proof performance, while the generous size is perfect for RVs, horse trailers, and marine vessels. Made in the USA and built tougher than many factory-installed tanks, it’s resistant to stains, corrosion, and rust for long-lasting reliability.
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Elkhart RV Parts 100 Gallon Fresh Water Tank T100 - Premium RV Water Storage Solution

The Elkhart RV Parts 100 gallon fresh water tank (model T100) delivers reliable, long-lasting potable water storage for your RV, camper, or marine application. Measuring 81 inches long by 26 inches wide by 11 inches tall, this low-profile design fits perfectly in tight underbelly spaces while maximizing your freshwater capacity for extended trips off-grid.

Constructed from FDA-approved polyethylene, this OEM-grade replacement tank ensures your drinking water stays clean and safe. The durable polyethylene construction resists cracking, warping, and UV degradation, providing years of dependable service even in harsh outdoor conditions.

Why Choose This 100 Gallon RV Fresh Water Tank

When you need maximum water capacity in a slim profile, the T100 delivers. This tank is engineered specifically for RV applications where space is at a premium but water capacity cannot be compromised. The 81-inch length and 11-inch height make it ideal for mounting beneath RVs, travel trailers, and fifth wheels without sacrificing ground clearance.

As an authorized Elkhart RV Parts dealer, we guarantee you're getting genuine OEM-grade quality that meets or exceeds original equipment specifications. This isn't a cheap aftermarket substitute - it's the real deal, built to the same exacting standards as tanks installed by RV manufacturers.

Key Features and Specifications

• Capacity: 100 gallons of potable fresh water storage
• Dimensions: 81 inches (L) x 26 inches (W) x 11 inches (H)
• Material: FDA-approved polyethylene for safe drinking water
• Construction: OEM-grade quality with reinforced design
• Weight: Approximately 120 lbs (empty)
• Model Number: T100
• SKU: T100
• Application: RVs, travel trailers, fifth wheels, campers, marine
• Profile: Low-profile design for underbelly mounting
• UV Resistance: Polyethylene construction resists sun damage
• Temperature Range: Suitable for all-season use

Perfect Applications and Compatibility

This 100 gallon fresh water tank is the ideal solution for:

• Full-time RVers who need extended water capacity for boondocking
• Travel trailers and fifth wheels with underbelly mounting space
• RV restoration projects requiring OEM-quality replacement tanks
• Upgrading from smaller capacity tanks to maximize water storage
• Marine applications requiring potable water storage
• Off-grid cabins and tiny homes needing reliable water storage

The slim 11-inch height profile makes this tank particularly well-suited for installations where vertical space is limited but you still need substantial water capacity. The 81-inch length distributes weight evenly for better balance and handling.

Installation and Mounting Considerations

Before ordering, carefully measure your available mounting space to ensure proper fitment. This tank requires a minimum clearance of 81 inches in length, 26 inches in width, and 11 inches in height. Allow additional space for fittings, hoses, and mounting hardware.

The tank features standard RV fresh water tank fittings and is designed for straightforward installation. Most installations can be completed with basic tools and standard RV plumbing components. Professional installation is recommended if you're not experienced with RV plumbing systems.

Compatible Products and Accessories

Complete your fresh water system with these compatible Elkhart Plastics products:

• Elkhart Plastics 100 Gallon Tank W1344 (48x26x20) - Alternative 100 gallon configuration
• 98 Gallon Fresh Water Tank 171W (64x26x15) - Similar capacity, different dimensions
• 98 Gallon Fresh Water Tank W1435 (59x58x7) - Ultra low-profile alternative

Works With These Smaller Capacity Tanks

If you're looking for additional tanks or smaller capacity options for different zones:

• 39 Gallon Fresh Water Tank 605W (54x28x5.75) - Compact low-profile option
• 26 Gallon Fresh Water Tank W1579000 (51.5x23x6) - NSF certified smaller tank

Compare 100 Gallon Fresh Water Tank Options

💡 Tip: The T100's extra-long, slim profile makes it ideal for installations under longer RVs where you need to maximize capacity without increasing height. If you have more vertical clearance but less length, consider the W1344 instead.

Quality You Can Trust

Every Elkhart RV Parts fresh water tank is manufactured to strict quality standards using FDA-approved materials. The polyethylene construction is specifically formulated for potable water storage, ensuring your drinking water remains safe and uncontaminated. Unlike cheaper alternatives, our tanks won't impart plastic taste or odors to your water.

The reinforced construction handles the stress of road travel, temperature fluctuations, and the weight of 100 gallons of water (approximately 834 pounds when full) without flexing, cracking, or leaking. This is the same quality tank trusted by RV manufacturers for original equipment installations.

Frequently Asked Questions

What are the exact dimensions of the T100 tank?

The tank measures 81 inches long, 26 inches wide, and 11 inches tall. Always measure your installation space carefully before ordering to ensure proper fitment.

Is this tank safe for drinking water?

Yes, this tank is constructed from FDA-approved polyethylene specifically designed for potable water storage. It meets all safety standards for drinking water applications.

How much does the tank weigh when full?

The empty tank weighs approximately 120 pounds. When filled to capacity with 100 gallons of water, the total weight is approximately 954 pounds (120 lbs tank + 834 lbs water).

Can this tank be used for holding tanks or gray water?

This tank is specifically designed and approved for fresh water storage only. For holding tank applications, please see our selection of dedicated RV holding tanks.

What fittings does this tank include?

The tank comes with standard RV fresh water tank fittings. Specific fitting configurations may vary - please contact us if you need detailed fitting information for your installation.

Will this tank fit my RV?

Fitment depends on your available mounting space. Measure your installation area carefully and compare to the tank dimensions (81x26x11 inches). If you need help determining fitment, our AI Live Chat can assist you with product selection.

Why Buy From Elkhart RV Parts?

As an authorized dealer, we provide genuine OEM-grade Elkhart RV Parts products backed by our commitment to quality and customer satisfaction. We understand RV systems inside and out, and we're here to help you find the right parts for your specific application.

Fast shipping gets your tank to you quickly so you can get back on the road. Our knowledgeable team is available through our AI Live Chat to answer technical questions and help ensure you're ordering the correct tank for your needs.

Order Your 100 Gallon Fresh Water Tank Today

Don't let limited water capacity hold you back from extended boondocking adventures. Upgrade to the Elkhart RV Parts 100 gallon fresh water tank T100 and enjoy the freedom of extended off-grid camping with reliable, safe water storage.

Need help with product selection or have technical questions? Use our AI Live Chat for expert assistance with deep product knowledge.