Factory RV Water Tank Combo – 16-Gallon & 21-Gallon

Keep your RV water system reliable with Factory RV’s water tank combo, featuring a 16-gallon tank and a 21-gallon tank. Perfect for campers, trailers, and custom builds, this set gives you flexible storage options for fresh, potable water on the road. From doing dishes to enjoying a shower, you’ll have peace of mind knowing your water supply is dependable.

Constructed from high-grade polyethylene, both tanks are rust- and corrosion-resistant for long-lasting performance in mobile and off-grid environments. With ⅛" wall thickness, they are designed to withstand pressure, vibration, and everyday wear without compromising durability.

For safe water storage, these tanks are FDA-approved, NSF-certified, and BPA-free, ensuring your supply remains clean and compliant with health standards. Installation is simple, thanks to the 2" inlet (⅞" internal diameter) and ½" outlets, which are fully compatible with standard RV plumbing systems.

Key Features

• Two tanks included – 16-gallon and 21-gallon capacities
• Durable build – high-grade polyethylene with ⅛" wall thickness
• Safe for potable water – FDA-approved, NSF-certified, and BPA-free
• Rust- and corrosion-resistant – built for RV and off-grid use
• Easy installation – 2" inlet (⅞" ID) and ½" outlets for plumbing compatibility
• Made in the USA – reliable quality and performance

Specifications

16-Gallon Tank

• Capacity: 16 gallons
• Length: 24"
• Width: 10"
• Height: 15 ½"

21-Gallon Tank

• Capacity: 21 gallons
• Length: 39"
• Width: 8"
• Height: 16"
• Wall Thickness: ⅛"
• Inlet Length: 2"
• Inlet Internal Diameter: ⅞"
• Outlets: ½"

Upgrade your RV setup with a dependable water tank combo that delivers durability, safety, and flexibility—so you can focus on enjoying the road.