A.A 10 Gallon RV Fresh/Gray Water Tank - Durable BPA Free

In this review of the A.A 10 Gallon RV Fresh/Gray Water Tank the bottom line is straightforward: this tank is for RV owners, horse trailer operators, and small marine applications that need a compact, durable non-pressurized tank with simple fittings. The reviewer found the single biggest reason to buy is the one-piece rotationally molded polyethylene construction, which avoids seams that can burst and delivers a lightweight but sturdy replacement for worn or corroded tanks. For anyone needing an OEM-style replacement or a potable option that resists rust and stains, this tank is worth considering.

Key Features

• One-piece construction: The rotational molded, seamless design reduces leak risk and offers long-term durability compared with multi-piece tanks.
• Compact footprint: Measuring 10 in x 14 in x 17 in (excluding fittings), it is easy to fit into tight compartments or under benches in RVs and trailers.
• BPA free polyethylene: Made from high-quality polyethylene, the tank is safe for fresh water storage and resists stains and corrosion over time.
• Ready connections: Includes one 1.25 in water fill inlet and three 3/8 in NPT connections to simplify plumbing hookups during installation.
• Non-pressurized design: Intended for vented installations; this reduces complexity for gravity-fed or pump-fed systems when venting is provided.

Who It's For

This tank suits RV owners looking for a direct replacement for small freshwater or gray water needs, as well as boaters and horse trailer owners wanting a corrosion-resistant, lightweight tank. The size makes it useful for weekend rigs, small camper conversions, and auxiliary water storage where space is limited.

It is not for systems that require pressurized tanks or integrated pressurized fittings; installers must plan for proper venting and may need to purchase additional fittings to match their plumbing layout. Those who need larger capacity or built-in fittings should look at bigger or purpose-built pressurized options.

Pros & Cons

Pros

• Seamless rotational molding lowers leak risk and improves durability for long service life.
• BPA free polyethylene construction is stain and corrosion resistant, suitable for potable water when sanitized prior to use.
• Compact dimensions and included inlets make it straightforward to install in tight RV compartments.
• Multiple 3/8 in NPT connections provide flexible plumbing options for pumps and drains.

Cons

• Non-pressurized design requires venting and possibly extra fittings, so additional parts and planning are needed for some installations.

Specifications

Capacity	10 gallon
Dimensions	10 in x 14 in x 17 in (excluding fittings)
Material	High quality polyethylene, BPA free
Fill inlet	1 x 1.25 in
Connections	3 x 3/8 in NPT
Design	One-piece seamless, non-pressurized (must be vented)

Our Verdict

The A.A 10 Gallon RV Fresh/Gray Water Tank is a sensible, cost-effective choice for small RVs, trailers, and boats that need a compact, corrosion-resistant replacement tank. Its seamless polyethylene build and included fittings make installation straightforward for vented systems, and it delivers good value for anyone who needs dependable non-pressurized water storage in limited space.

Frequently Asked Questions

Do I need additional fittings to install this tank?
Yes. The tank includes a 1.25 in fill inlet and three 3/8 in NPT connections, but installers will often need adapters, hoses, or vent fittings to match their specific plumbing.

Can this tank be used for potable water?
Yes. It is made from BPA free polyethylene, but the manufacturer recommends sanitizing the tank before first use to remove any manufacturing debris.

Is the tank pressurized?
No. This is a non-pressurized tank and must be vented so air can flow in and out during use to avoid damage.