Modular Caravan & RV Water Tank 43l

43 Litre Modular Water Tank

This 43L modular water tank is a compact, tough, and versatile option for caravans, camper trailers, and 4WD setups. Designed for tight spaces like between chassis rails or under ute trays, it gives you dependable water storage without taking up too much room.

Built from food-contact approved high-density polyethylene and built to last. Two integral 20mm (¾ BSP) threaded connections let you connect fittings, link tanks together, or run a full plumbing system. Link two or more tanks in parallel to expand capacity for larger setups. Compare sizes in our caravan and RV water tanks.

This tank can be used for fresh water or as a grey water tank. With the right fittings, it connects seamlessly to 12V pumps, water inlets, filters, and sender probes for a complete setup. A simple breather hole needs to be drilled once your installation is finalised. For peace of mind on the road, you can add protective brackets, plumber’s tape, or foam padding to reduce wear when mounting under a vehicle.

Product Features:

• 43L capacity, ideal for caravans, campers, and 4WDs
• Two integral 20mm (¾ BSP) threaded outlets/inlets
• Can be networked with multiple tanks for expanded storage
• Food-contact approved high-density polyethylene
• Tough blow-moulded construction
• Suitable for grey water when used with 20–25mm hose and fittings
• Light weight at only 2.5kg
• 1-year warranty
• Dimensions: 860(L) x 260(W) x 220(H) mm

Fitting Guide:

All the fittings are standard 20mm (3/4 BSP), so use your own or purchase fittings from your local plumbing or hardware store to suit your preferred installation. Use Teflon tape or sealant to ensure all fittings are watertight. Do not cross-thread fitting on the tank.

Note: the fittings shown are not included.

How To Install a Complete Caravan Plumbing System Using This Water Tank

This water tank is also featured in the following video