These rigid polyethylene water tanks (52 L and 71 L) are designed for secure fresh water storage in marine or mobile applications. Made from UV-resistant, food-grade polyethylene, the tank is safe for drinking water, imparting no taste, odor, or contaminants. Its rectangular shape and relatively low profile (20 cm height) allow it to be installed in tight, shallow spaces – for example, in the bottom of a locker, under a bench or bunk, or along the hull of a boat.
- 52 L Model: Approximately 75×39×20 cm in size, the 52-liter tank is ideal for smaller boats (around 14–20 feet) and compact camper vans where space is at a premium. It provides a sufficient water supply for dishwashing, handwashing, and short showers during day trips or weekend outings.
- 71 L Model: With a longer footprint (~105×39×20 cm), the 71-liter tank holds more water, suited for medium-sized boats (20–26 feet) or larger RVs and travel trailers that require extra water for extended trips. It offers added comfort for multi-day journeys – supporting more showers, cooking, and cleaning without frequent refills.
- Integrated Fittings: Both tank sizes feature a large top inspection/fill port through which you can easily fill the tank or clean its interior. The tank design includes flat areas or pre-threaded outlets for installing a drain valve, an air vent, and connections to a water pump. This makes it straightforward to hook the tank into your boat or RV’s plumbing system.
- Robust Construction: The one-piece rotomolded polyethylene body is thick-walled and uniform – able to withstand impacts and vibrations during travel. It will not crack or leak under normal use. Even when completely full, the material handles the water’s weight and pressure without issue. The plastic is opaque (typically in white or neutral color) to inhibit algae growth inside by blocking sunlight.
- Easy Maintenance: If cleaning is required, a wide inspection cap allows access to the inside – so you can rinse or sanitize the tank if water has been sitting unused. Otherwise, the tank needs minimal upkeep: simply mount it securely (using straps or brackets to hold it in place) and it’s ready for everyday use. This reliable water tank ensures you have a steady supply of fresh water on board while cruising or on the road.


