Best Fresh Water Storage Tanks for RVs and Travel Homes
This guide highlights top fresh water storage tanks suited for RVs, campers, and mobile living. The selections emphasize durability, BPA-free construction, sanitation, and flexible installation options. Whether you need a compact 19/20-gallon tank or a larger 65-gallon model, these picks cover storage capacity, portability, and compliance with safety standards to help ensure clean, reliable drinking water on the road.
| Product | Brand | Capacity | Notes |
|---|---|---|---|
| Ameri-Kart 36 Gallon RV Fresh Water Tank | Ameri-Kart | 36 Gallon | Potable, USA-made, multiple install options |
| Ameri-Kart 19 Gallon RV Fresh Water Tank | Ameri-Kart | 19 Gallon | Potable, BPA-free, durable construction |
| RomoTech 82123929 Horizontal Square Reservoir | RomoTech | 100 Gallon | UV-resistant, non-flammable liquids, rugged use |
| RecPro RV Fresh Water Tank | RecPro | 65 Gallon | NSF certified, compact for space |
| Chapin 40-Gallon Water Storage Tank | Chapin International | 40 Gallon | Translucent for level viewing, USA-made |
Ameri-Kart 36 Gallon RV Fresh Water Tank

42″ x 34″? No—this 36-gallon capacity tank is designed for potable water in RVs, motor homes, trailers, campers, and tiny houses. The unit is made in the USA from BPA-free materials, ensuring safety for drinking, cooking, cleaning, and showering. Built-in fittings include two 1.5″ balloon-style threaded NPT ports and two 0.5″ ports, allowing flexible installation options. The tank features weather and impact resistance for durability and is designed to be sanitary and leak-proof, meeting IAPMO standards for reliability on the go.
Ameri-Kart 19 Gallon RV Fresh Water Tank

This 19-gallon potable water tank is designed for drinking, cooking, cleaning, and showering in recreational vehicles. It offers multiple installation options with built-in fittings including two 1.5″ balloon style threaded NPT ports and two 0.5″ ports. The tank is crafted from weather- and impact-resistant plastics to ensure durability and hygiene, with a sanitary, leak-proof design. It also adheres to IAPMO standards for reliable RV water storage.
RomoTech 100 Gallon Horizontal Water Tank

Designed for non-flammable liquids, this 100-gallon tank is ideal for RV water storage, agricultural use, or mobile setups. Constructed from UV-stabilized, rustproof polyethylene, it withstands outdoor conditions and rugged environments. Notable features include a large fill cap, integrated drain, and molded bulkhead fittings to facilitate quick refilling, easy emptying, and efficient siphoning or hose connections during daily use. The tank is tailored for reliability in demanding settings.
RecPro RV Fresh Water Tank 65 Gallon

With a 65-gallon capacity, this NSF-certified freshwater tank is suitable for RVs, boats, or extended outdoor trips. The compact footprint (approximately 44.5″ x 19″ x 17.25″) helps it fit in tighter spaces while offering ample storage for fresh water. The tank is designed for safe contact with drinking water and is paired with RecPro’s support network for installation and maintenance. The product emphasizes safety, durability, and space efficiency for mobile living.
A.A 30 Gallon RV Fresh/Gray Water Tank

This 30-gallon tank measures 34″ x 18″ x 12″ (excluding fittings). It includes a 1.25″ water fill inlet and three 3/8″ NPT connections. It’s a non-pressurized tank that requires venting and features a one-piece seamless construction, reducing risk of seams bursting. This option is suitable for RVs requiring a straightforward, durable water storage solution with simple installation.
Chapin 40-Gallon Water Storage Tank

Made in the USA, this translucent 40-gallon tank is designed for utility storage and easy monitoring of liquid levels. It’s suitable for hauling via truck, tractor, or trailer and is built with UV protection, chemical resistance, and nitrile seals. A 6-inch cap and 2-inch drain with a molded 3/4-inch port facilitate quick drainage and compatibility with standard garden hoses, making it a versatile option for portable water storage and transport.
Star Brite Aqua Tank System Flush

Designed to deep-clean and deodorize fresh water tanks, this system helps restore taste and odor after long storage. It targets the entire drinking water system, removing scale and sediment that can cause foul flavors. Particularly useful for boats and RVs, it provides a comprehensive maintenance step to preserve water quality before use.
RecPro 65 Gallon Fresh Water Tank

Note: This entry repeats to emphasize RecPro’s 65-gallon model discussed earlier in the sections. It emphasizes NSF certification, safety, and a practical capacity for RVs and boats needing substantial fresh water storage with dependable performance on the road or water.
Buying Guide
Key considerations
- Capacity needs: Assess typical trip duration and water usage to determine appropriate gallon size (e.g., 19–36 gallons for shorter trips, 65+ gallons for longer adventures).
- Material and safety: Look for BPA-free plastics and NSF/IAPMO/UL certifications where applicable to ensure drinking water safety.
- Installation options: Check existing RV fittings and space; preference for tanks with multiple NPT ports for flexible mounting.
- Durability: Choose UV-stabilized, weather-resistant tanks for outdoor exposure and long-term rugged use.
- Maintenance and cleaning: Tanks with accessible fill ports, drains, and easy-to-clean interiors reduce upkeep; consider products such as system flushes for periodic cleaning.
- Portability vs. fixed placement: Lightweight or modular tanks suit small RVs or trailer interiors, while larger tanks fit long-haul setups with dedicated storage space.
- Warranty and support: Favor brands offering clear warranty terms and US-based customer support for RV-specific use.
Comparisons at a glance
- Small capacity (19–20 gallons): Compact, easy to install, ideal for short trips or limited space.
- Medium capacity (30–40 gallons): Balanced option for regular travelers who need more water without bulk.
- Large capacity (65–100 gallons): Best for long trips or families, requires more storage space but reduces frequent refills.
- Material considerations: BPA-free plastics with weather resistance offer safety and durability for outdoor use.
- Maintenance: Tanks with integrated drains and clear port access simplify cleaning and monitoring.