A.A 30 Gallon RV Fresh/Gray Water Tank — 34 x 18 x 12 in, BPA-Free Rotomolded Polyethylene

A.A's 30-gallon BPA-free RV water tank is a seamless, rotomolded polyethylene reservoir designed for fresh or gray water storage in RVs, trailers, and mobile food booths.

This single-piece water tank gives a durable, corrosion-resistant option for replacing or upgrading onboard water storage. Its 34" x 18" x 12" footprint fits many vehicle and trailer cavities, and the molded plastic resists stains and rust that shorten the life of metal or poorly finished tanks. The unit ships with a 1.25" fill inlet and three 3/8" NPT fittings; however, installation accessories and final plumbing should be chosen to match your vehicle layout and local health inspections.

How does this tank handle installation and fitting needs?

The tank is non-pressurized and requires venting so air can move in and out during filling and draining; it includes one 1.25" water fill inlet and three 3/8" NPT ports for outlet or sensor plumbing. Additional hoses, connectors, and a vent line will usually be required. Tighten fittings carefully and consider a certified installer if you are unsure of vehicle plumbing standards.

• Includes: (1) 1.25" fill inlet plus (3) 3/8" NPT connections
• Non-pressurized — must be vented to prevent damage
• Purchase separate hoses, seals, and mounting hardware
• Avoid over-tightening top fittings to prevent stress or cracks

What are the tank's size, shape and material details?

Measured at roughly 34" long, 18" wide and 12" tall (not including fittings), the tank has an average wall thickness of about 1/8" and is rotationally molded for one-piece construction. Rotomolding eliminates seams that can leak or fail and gives a uniform thickness for strength. Dimensions vary slightly within ±0.5" and fittings add about 2.5" of length where installed.

• Dimensions: 34" x 18" x 12" (approx.) — fittings not included
• Average wall thickness ~1/8" (+/- tolerance)
• One-piece seamless rotomolded polyethylene construction
• Fittings project ~2.5" from tank face

How should I prepare, mount and maintain this tank?

Sanitize before first use to remove manufacturing dust or residue and inspect interior for debris. Place the tank on a level surface and brace it to prevent shifting while driving; do not suspend the tank by straps or place heavy loads on top. Modifying the tank or using it for unintended purposes voids the warranty, and the manufacturer advises professional installation for best results.

• Wipe exterior and sanitize interior before use
• Mount on level support and brace to prevent movement
• Do not hang by straps or load the tank from above
• Cutting or altering the tank voids warranty

Who is this for? This A.A 30-gallon tank is aimed at RV owners, concession and food vendors, small marine craft, and trailer builders who need a reliable, food-safe reservoir for fresh or gray water. It's particularly useful when you want a corrosion-free plastic replacement with pre-molded connections and a compact footprint that fits common vehicle cavities. Verify local health department requirements and choose compatible fittings for your installation before purchase.