RV Fresh Water Tanks - OEM Replacement Tanks - RV, Motorhome, Camper Van

An RV fresh water tank stores clean water for sinks, showers, toilets, and onboard plumbing in campers, travel trailers, fifth wheels, motorhomes, vans, boats, tiny homes, and off-grid builds.

Use this collection when you know the approximate size, shape, and fitting layout you need. Measure the tank space before ordering: length, width, height, fitting locations, fill/vent/outlet sizes, and available clearance around straps, plumbing, frame rails, and nearby components.

How to shop RV fresh water tanks

• Match the tank dimensions and capacity as closely as possible.
• Compare fitting placement, not just gallon size. Two tanks with similar capacity may not plumb in the same way.
• Use the RV Tank Finder collection or Tank Finder tool when you are shopping by dimensions.
• Shop RV tank fittings and spinweld parts when a tank needs a different fitting layout.
• See the RV tank measurement and fitting guide before ordering if you are replacing a tank from measurements.

Fresh water tanks should be selected from verified measurements and plumbing requirements. If you are unsure, photograph the old tank, fittings, label, and available space before choosing a replacement.

For grey or black wastewater replacements, compare the RV holding tanks collection rather than the fresh-water listings.