89ltr Mercedes Sprinter & VW Crafter Underslung Water/Waste Tank

This 89ltr fresh or waste water tank is purpose-built to fit:

Mercedes Sprinter (2006+)

VW Crafter (2007–2016)
Fits L2, L3, or L4 wheelbase vans (MWB / LWB / XLWB).

Expertly designed to mount underneath your van, this tank helps maximise your internal space — ideal for campervan conversions where every inch counts. 

Optional purpose made stainless steel brackets and all the required fittings to make installation as straightforward as possible.

✅ Why Choose This Tank?

Dual-use: Suitable for fresh or grey water

Custom-fit for your van’s underside

Free up interior space for living, storage, or equipment

Built to last with robust, rust-resistant hardware

Rotationally moulded in one piece this creates a high quality, tough and durable product. Manufactured in the UK using WRAS approved polymers, this makes the tank suitable for potable water. This tank has no internal separation meaning it can be used only for fresh or waste water. It can also be used in conjunction with other tanks to fulfil your requirements, please check vehicle specifics to confirm compatibility.      

Complete with M8 threaded inserts moulded into the tank at manufacture, this makes for easy mounting when used with the optional bracket kits. 3 x vents/breathers are fitted into the top sections of the tank.

2 x female threaded connection points are provided in a lower sump (1 x 1.1/4" BSP an 1 x 1/2" BSP).

A 5″ hatch with threaded lid gives access to the inside of the the tank from the top.

An optional mounting kit is available consisting of vehicle specific stainless-steel brackets, M8 socket head bolts & 5.5 x 25mm TEK screws.

We also sell a range of sill mounted Fill/Drain valves that work well with this tank.