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RV Fresh Water Tanks - Ronco Plastics - California

The Best RV Fresh Water Tanks for Life on the Road
When you're miles from the nearest hookup, clean, dependable fresh water isn't a luxury — it’s your lifeline. Whether you're building out a custom van, upgrading your travel trailer, or replacing a cracked tank in your motorhome, your system starts here....

At Tank Depot, we have one of the largest selections of food-grade, BPA-free RV water tanks available online — from compact 3-gallon tanks for minimalist builds to massive 200-gallon setups for extended off-grid travel. Each van tank is engineered for the demands of mobile living: lightweight yet durable, safe for drinking water, and designed to fit into tight, unconventional spaces. And because no two rigs are the same, many of our tanks come blank or semi-fitted, giving you the freedom to plumb your system your way — or take advantage of our custom RV fittings and accessories to get it done right the first time.

The Right Potable RV Water Tank for Any Build

Whether you're upgrading your current rig or building something from the wheels up, our RV fresh water tanks are built to serve a wide range of real-world, road-tested applications:

Motorhomes and Travel Trailers
Motorhomes and Travel Trailers

Provide clean water for daily use—drinking, cooking, dishwashing, and showers—during long-distance travel or extended stays.

Camper Vans and Van Conversions
Camper Vans and Van Conversions

Ideal for tight, custom-built spaces where a low-profile or compact RV water tank is essential for maximizing layout efficiency.

Fifth Wheels and Toy Haulers
Fifth Wheels and Toy Haulers

Ensure a high-capacity, secure water supply for larger RVs with multiple water outlets, helping you stay off-grid longer.

Off-Grid Cabins and Tiny Homes
Off-Grid Cabins and Tiny Homes

Serve as a reliable potable water storage tank in remote, plumbing-free environments where water access is limited.

Food Trucks and Mobile Kitchens
Food Trucks and Mobile Kitchens

Meet health department standards for sanitary water storage, providing a clean source for cooking, prep, and washing.

Horse Trailers and Livestock Transport
Horse Trailers and Livestock Transport

Store fresh water for animal hydration or cleanup needs when traveling to shows, races, or rural locations.

Emergency Water Storage at Home
Emergency Water Storage at Home

Dual-purpose tanks offer a safe backup water supply during storms, outages, or natural disasters.

RV Remodels and System Upgrades
RV Remodels and System Upgrades

Replace cracked or outdated tanks with FDA-approved RV fresh water tanks made to modern safety standards.

Why Choose Tank Depot’s RV Fresh Water Tanks?

Whether you’re navigating remote backroads or living full-time on the road, your water system needs to be dependable. At Tank Depot, we don’t just sell tanks—we engineer solutions that keep your RV running smoothly, no matter where you park it.

One-Piece, Seamless Construction
One-Piece, Seamless Construction

All of our RV water tanks are rotationally molded in one solid piece. This process eliminates seams—the weak points where cracks and leaks typically begin. The result? A road-ready tank that can take the bumps, vibrations, and stress of long-distance travel without compromising.

Food-Grade, BPA-Free Polyethylene
Food-Grade, BPA-Free Polyethylene

Our camper van tanks are manufactured using FDA-approved, BPA-free polyethylene that’s safe for storing potable water. You can count on your supply staying clean, odor-free, and free of contaminants—whether you're using it for drinking, cooking, or showering.

UV-Stabilized for Outdoor Durability
UV-Stabilized for Outdoor Durability

Many RV tanks are tucked away in undercarriages or mounted externally. That’s why our fresh water tanks include UV inhibitors, preventing material degradation from sun exposure—perfect for full-time RVers and anyone who camps in hot, sunny climates.

A Size for Every Setup
A Size for Every Setup

From 3-gallon tanks for van conversions to 200-gallon tanks for motorhomes, we offer one of the widest selections of RV fresh water tank sizes and shapes available online. Whether you're looking to save space or extend your water supply, we’ve got the right fit.

Expert Support You Can Call On
Expert Support You Can Call On

Our team doesn’t just know tanks—we know RV water and waste storage systems. Need help choosing the right RV fresh water tank replacement? Just ask. We’re here to help you make the right decision the first time.

Custom Fitting Options
Custom Fitting Options

No two RV plumbing systems are the same—and we respect that. You can order a blank tank and install your fittings where needed as you take advantage of our custom RV water tank fittings and accessories.

Ready for the Road? Start with a Fresh Water Tank You Can Trust

When you're living life on wheels, your fresh water tank isn’t just another part—it’s the heart of your entire system. Whether you're upgrading your RV water supply, replacing a cracked tank, or building a custom van from the ground up, we have the solution to match.

At Tank Depot, we make it easy to find the best RV tanks for fresh water storage—with the quality, customization, and support that RV owners count on. Our commitment is to provide a durable, food-grade water tank for your RV that you can install with total confidence, knowing your water will always be safe and taste-free. From compact setups to high-capacity rigs, our tanks are designed to go the distance.

Browse our full collection of RV fresh water tanks today, or get in touch for help selecting the right fit for your build. Whatever you’re driving—and wherever you’re going—Tank Depot keeps your water supply reliable, clean, and road-ready.

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Capacity Name Diameter Length Width Height SKU Price
Buy 3 Gallon Plastic RV Water Tank by Ronco Plastics for only $115.60 3 Gallons Buy 3 Gallon Plastic RV Water Tank by Ronco Plastics for only $115.60 Ronco Plastics 3 Gallon Plastic RV Water Tank 17 7 7 R-RV13W $115.60
Buy 3 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $154.99 3 Gallons Buy 3 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $154.99 Ronco Plastics 3 Gallon Light Duty Polyethylene RV Fresh Water Tank 16.375 9 5.25 R-RVB267 $154.99
Buy 4 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $154.99 4 Gallons Buy 4 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $154.99 Ronco Plastics 4 Gallon Light Duty Polyethylene RV Fresh Water Tank 17.625 8.25 7.875 R-RVB269 $154.99
Buy 4.25 Gallon Plastic RV Water Tank by Ronco Plastics for only $94.38 4.25 Gallons Buy 4.25 Gallon Plastic RV Water Tank by Ronco Plastics for only $94.38 Ronco Plastics 4.25 Gallon Plastic RV Water Tank 26 11 7 R-RVB525 $94.38
Buy 5 Gallon Plastic RV Water Tank by Ronco Plastics for only $179.99 5 Gallons Buy 5 Gallon Plastic RV Water Tank by Ronco Plastics for only $179.99 Ronco Plastics 5 Gallon Plastic RV Water Tank 20 12 5.5 R-RVB390 $179.99
Buy 5 Gallon Plastic RV Water Tank by Ronco Plastics for only $179.99 5 Gallons Buy 5 Gallon Plastic RV Water Tank by Ronco Plastics for only $179.99 Ronco Plastics 5 Gallon Plastic RV Water Tank 18 13.5 7 R-RVB410 $179.99
Buy 5 Gallon Plastic RV Water Tank by Ronco Plastics for only $179.99 5 Gallons Buy 5 Gallon Plastic RV Water Tank by Ronco Plastics for only $179.99 Ronco Plastics 5 Gallon Plastic RV Water Tank 21 8.25 8 R-RVB322 $179.99
Buy 5 Gallon Plastic RV Water Tank by Ronco Plastics for only $113.25 5 Gallons Buy 5 Gallon Plastic RV Water Tank by Ronco Plastics for only $113.25 Ronco Plastics 5 Gallon Plastic RV Water Tank 18.5 9.5 6.75 R-RVB377 $113.25
Buy 5 Gallon Plastic RV Water Tank by Ronco Plastics for only $154.99 5 Gallons Buy 5 Gallon Plastic RV Water Tank by Ronco Plastics for only $154.99 Ronco Plastics 5 Gallon Plastic RV Water Tank 12.25 12.25 8.25 R-RVB268 $154.99
Buy 6 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 6 Gallons Buy 6 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 Ronco Plastics 6 Gallon Plastic RV Water Tank 13.75 13.75 10 R-RVB404 $199.99
Buy 6 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $199.99 6 Gallons Buy 6 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $199.99 Ronco Plastics 6 Gallon Light Duty Polyethylene RV Fresh Water Tank 16 12 8 R-RVB277 $199.99
Buy 6 Gallon Plastic RV Water Tank by Ronco Plastics for only $117.20 6 Gallons Buy 6 Gallon Plastic RV Water Tank by Ronco Plastics for only $117.20 Ronco Plastics 6 Gallon Plastic RV Water Tank 21.625 14.75 5.75 R-RVB285 $117.20
Buy 6 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 6 Gallons Buy 6 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 Ronco Plastics 6 Gallon Plastic RV Water Tank 20 11.5 7 R-RVB357 $199.99
Buy 6.5 Gallon Plastic RV Water Tank by Ronco Plastics for only $244.99 6.5 Gallons Buy 6.5 Gallon Plastic RV Water Tank by Ronco Plastics for only $244.99 Ronco Plastics 6.5 Gallon Plastic RV Water Tank 27 13.25 4.25 R-RVB533 $244.99
Buy 7 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 7 Gallons Buy 7 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 Ronco Plastics 7 Gallon Plastic RV Water Tank 19.25 13.125 7.125 R-RVB271 $199.99
Buy 7 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 7 Gallons Buy 7 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 Ronco Plastics 7 Gallon Plastic RV Water Tank 24.25 12.5 5.75 R-RVB272 $199.99
Buy 7 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 7 Gallons Buy 7 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 Ronco Plastics 7 Gallon Plastic RV Water Tank 27 10.25 6.5 R-RVB287 $199.99
Buy 7 Gallon Plastic RV Water Tank by Ronco Plastics for only $154.99 7 Gallons Buy 7 Gallon Plastic RV Water Tank by Ronco Plastics for only $154.99 Ronco Plastics 7 Gallon Plastic RV Water Tank 12 12 12 R-RVB326 $154.99
Buy 7 Gallon Plastic RV Water Tank by Ronco Plastics for only $101.91 7 Gallons Buy 7 Gallon Plastic RV Water Tank by Ronco Plastics for only $101.91 Ronco Plastics 7 Gallon Plastic RV Water Tank 15.625 15.125 7.75 R-RVB275 $101.91
Buy 7.5 Gallon Plastic RV Water Tank by Ronco Plastics for only $154.99 7.5 Gallons Buy 7.5 Gallon Plastic RV Water Tank by Ronco Plastics for only $154.99 Ronco Plastics 7.5 Gallon Plastic RV Water Tank 13 12 12 R-RVB535 $154.99
Buy 8 Gallon Plastic RV Water Tank by Ronco Plastics for only $174.99 8 Gallons Buy 8 Gallon Plastic RV Water Tank by Ronco Plastics for only $174.99 Ronco Plastics 8 Gallon Plastic RV Water Tank 17 12.75 10 R-RV41W $174.99
Buy 8 Gallon Plastic RV Water Tank by Ronco Plastics for only $153.00 8 Gallons Buy 8 Gallon Plastic RV Water Tank by Ronco Plastics for only $153.00 Ronco Plastics 8 Gallon Plastic RV Water Tank 17.75 15.75 8.25 R-RV21W $153.00
Buy 8 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 8 Gallons Buy 8 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 Ronco Plastics 8 Gallon Plastic RV Water Tank 24 12.25 6.875 R-RVB270 $224.99
Buy 8 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $224.99 8 Gallons Buy 8 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $224.99 Ronco Plastics 8 Gallon Light Duty Polyethylene RV Fresh Water Tank 24 10 9 R-RVB360 $224.99
Buy 8 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 8 Gallons Buy 8 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 Ronco Plastics 8 Gallon Plastic RV Water Tank 18 11.5 10 R-RVB186 $224.99
Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $244.99 9 Gallons Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $244.99 Ronco Plastics 9 Gallon Plastic RV Water Tank 16 14 10 R-RVB132 $244.99
Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 9 Gallons Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 Ronco Plastics 9 Gallon Plastic RV Water Tank 27 15 6 R-RVB304 $224.99
Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 9 Gallons Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 Ronco Plastics 9 Gallon Plastic RV Water Tank 18 12.5 11 R-RVB321 $224.99
Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 9 Gallons Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 Ronco Plastics 9 Gallon Plastic RV Water Tank 19.5 14 8 R-RVB358 $224.99
Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 9 Gallons Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 Ronco Plastics 9 Gallon Plastic RV Water Tank 19 15 9 R-RVB442 $224.99
Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $157.39 9 Gallons Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $157.39 Ronco Plastics 9 Gallon Plastic RV Water Tank 18.5 17 7.5 R-RVB532 $157.39
Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 9 Gallons Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 Ronco Plastics 9 Gallon Plastic RV Water Tank 32 15 5 R-RVB288 $224.99
Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 9 Gallons Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 Ronco Plastics 9 Gallon Plastic RV Water Tank 20.5 12.75 8 R-RV56W $199.99
Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 9 Gallons Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 Ronco Plastics 9 Gallon Plastic RV Water Tank 25.5 10.5 8.5 R-RVB361 $224.99
Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $211.00 9 Gallons Buy 9 Gallon Plastic RV Water Tank by Ronco Plastics for only $211.00 Ronco Plastics 9 Gallon Plastic RV Water Tank 34.25 15 12 R-RV31W $211.00
Buy 10 Gallon Plastic RV Water Tank by Ronco Plastics for only $244.99 10 Gallons Buy 10 Gallon Plastic RV Water Tank by Ronco Plastics for only $244.99 Ronco Plastics 10 Gallon Plastic RV Water Tank 25.25 12.75 8 R-RVB389 $244.99
Buy 10 Gallon Plastic RV Water Tank by Ronco Plastics for only $244.99 10 Gallons Buy 10 Gallon Plastic RV Water Tank by Ronco Plastics for only $244.99 Ronco Plastics 10 Gallon Plastic RV Water Tank 32 19.5 4.75 R-RVB323 $244.99
Buy 10 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $244.99 10 Gallons Buy 10 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $244.99 Ronco Plastics 10 Gallon Light Duty Polyethylene RV Fresh Water Tank 18 13 11 R-RVB365 $244.99
Buy 10 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $166.13 10 Gallons Buy 10 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $166.13 Ronco Plastics 10 Gallon Light Duty Polyethylene RV Fresh Water Tank 18 12 12 R-RVB560 $166.13
Buy 10 Gallon Plastic RV Water Tank by Ronco Plastics for only $146.00 10 Gallons Buy 10 Gallon Plastic RV Water Tank by Ronco Plastics for only $146.00 Ronco Plastics 10 Gallon Plastic RV Water Tank 15.375 13.25 13.25 R-RVB263 $146.00
Buy 10 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 10 Gallons Buy 10 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 Ronco Plastics 10 Gallon Plastic RV Water Tank 26 11 11 R-RVB438 $224.99
Buy 11 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 11 Gallons Buy 11 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 Ronco Plastics 11 Gallon Plastic RV Water Tank 30.25 10 9 R-RV23W $199.99
Buy 11 Gallon Plastic RV Water Tank by Ronco Plastics for only $244.99 11 Gallons Buy 11 Gallon Plastic RV Water Tank by Ronco Plastics for only $244.99 Ronco Plastics 11 Gallon Plastic RV Water Tank 35 19.5 4.75 R-RVB319 $244.99
Buy 11 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $269.99 11 Gallons Buy 11 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $269.99 Ronco Plastics 11 Gallon Light Duty Polyethylene RV Fresh Water Tank 17 16 11 R-RVB375 $269.99
Buy 11 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 11 Gallons Buy 11 Gallon Plastic RV Water Tank by Ronco Plastics for only $224.99 Ronco Plastics 11 Gallon Plastic RV Water Tank 15.375 13.5 13.5 R-RVB286 $224.99
Buy 12 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $269.99 12 Gallons Buy 12 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $269.99 Ronco Plastics 12 Gallon Light Duty Polyethylene RV Fresh Water Tank 18 14 12 R-RVB105 $269.99
Buy 12 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $167.72 12 Gallons Buy 12 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $167.72 Ronco Plastics 12 Gallon Light Duty Polyethylene RV Fresh Water Tank 16 16 15 R-RVB441 $167.72
Buy 12 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 12 Gallons Buy 12 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 Ronco Plastics 12 Gallon Plastic RV Water Tank 18 13 13 R-RV16W $199.99
Buy 12 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $151.01 12 Gallons Buy 12 Gallon Light Duty Polyethylene RV Fresh Water Tank by Ronco Plastics for only $151.01 Ronco Plastics 12 Gallon Light Duty Polyethylene RV Fresh Water Tank 17 17 11 R-RVB255 $151.01
Buy 12 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 12 Gallons Buy 12 Gallon Plastic RV Water Tank by Ronco Plastics for only $199.99 Ronco Plastics 12 Gallon Plastic RV Water Tank 24 15.5 8.25 R-RV14W $199.99
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