This undermounr tank is designed to fit snugly under the driver side of your Sprinter's framed undercarriage; these tanks are the perfect solution for managing your water while relaxing at the campsite!

This tank was designed with versatility in mind! Use this tank for grey water management, or, bundle this tank with our Freshwater Fittings Kit and use it for freshwater storage under your van, or in your van's interior. Rest easy knowing this tank is food-grade CSA certified and BPA-free.

Looking for more volume? Check out our 17 Gallon Sprinter Undermount Water Tank!

Do you want to spend more time at the campsite and less time searching for water fill-up stations? Bundle your undermount tank with our custom-made 29 Gallon Sprinter Wheel Well Water Tank! Have a dually? no problem! Check out our 32 Gallon Sprinter Dually Wheel Well Water Tank!

Key Features & Benefits:

Save Space - Mount underneath your van chassis for extra storage room inside your van - driver or passenger side.
Perfect Fit - Designed to fit perfectly under the Sprinter van, simply position the tank and attach with strapping, no need to make modifications.
Durable Design - This tank is tough; rest assured knowing your tank will hold up to exposure and the elements.
Multi-Purpose - Use this undermount tank for grey water storage, or bundle it with our Freshwater Fittings Kit to turn this tank into a freshwater reservoir; option to mount in your van's interior, as a freshwater tank.
BPA-Free and Food Grade Approved - These tanks are CSA approved and food grade certified for safe drinking water.
Fittings Kit Add-On Available - Save yourself the headache and multiple trips to the plumbing store when you bundle this tank with our Grey Water Fittings Kit or Fresh Water Fittings Kit!
Compatible - This tank pairs well with our 29 Gallon Sprinter Wheel Well Water Tank.

Dimensions & Specifications:

Designed for the Mercedes Sprinter, all wheelbases.
Compatible as an interior water tank, for any van.

The tank can only be mounted on the DRIVER OR PASSENGER SIDE of your van, however, your drain hose can be routed to your passenger side if needed. The end of the tank with the 4x fittings (1 x 1 ¼", 1 x ¾", and 2 x ½") usually faces the rear of van, but the tank can be faced in either direction.

Tanks are made from linear low-density polyethylene.
Food grade CSA approved and BPA free - safe for freshwater use!

10.43 Gallons / 39.4 Litres

36" x 9.5" x 8" (Length x Width x Height)

1 x 1 ¼" drill-out membrane port (on top)
1 x 1 ¼" drill-out membrane port (on ONE end)
1 x ¾" port (on ONE end)
2 x ½" ports (on ONE end)

The larger 1 ¼" ports are "membrane ports", which require drill-out for use.
The membrane eliminates the need to plug the ports if you don't use them.

All ports are NPT female-threaded.

Grey Water Fittings Kit Add-On:

1x 1 ¼" PVC 90
2x ¾" PVC 90
1x ¾" PVC Ball Valve
1x ¾" Nipple - 6" long
1x ¾" Nipple - 4" long
1x ¾" Nipple - 1 ½" long
1x ½" Poly Adaptors
1x ½" Poly Elbow
1x ½" PVC Plug
2x #20 Hose Clamps
1x #8 Hose Clamps
1x Roll of Teflon Tape
5ft Fill Hose
2ft ⅝" ID Vinyl Hose

Fresh Water Fittings Kit Add-On:

1x 1 ¼" PVC 90
2x ¾" PVC 90
1x ¾" PVC Ball Valve
1x ¾" Nipple - 6" long
1x ¾" Nipple - 4" long
1x ¾" Nipple - 1 ½" long
1x ½" Poly Adaptor
2x ½" Poly Elbows
2x #20 Hose Clamps
2x #8 Hose Clamps
1x Roll of Teflon Tape
1x Fill Port
5ft Fill Hose
5ft ⅝" ID Vinyl Hose

STRAPPING NOT INCLUDED. We suggest using stainless-steel or galvanized steel-slotted strapping with 1/4" riv-nuts to secure the tank to your van's undercarriage. Only use corrosion-resistant strapping, as the strapping will be exposed to moisture.

More Information:

Wheel Well & Undermount Water Tank FAQ Sheet

Full Details of the Grey Water Fittings Kit Add-On
Select this add-on with your tank purchase and save $20 vs buying separately!

Full Details of the Fresh Water Fittings Kit Add-On
Select this add-on with your tank purchase and save $20 vs buying separately!

Check out our Sprinter Undermount Water Tank (17 Gallon)

Check out our Sprinter Wheel Well Water Tank (29 Gallon)

Check out our Sprinter Dually Wheel Well Water Tank (32 Gallon)