National Luna – Portable Fridges and Dual Battery System Products BOAB – Storage Systems and Poly Tanks Front Runner – 4x4 Accessories & Equipment
Windcheetah -  Low Profile Roof Racks
Feather-lite Eezi Awn – Roof Tents and Awnings
Dolium Pty Ltd
Home    : :    Dealer Locator    : :    News    : :    Catalogues & Downloads    : :    About Us    : :    Contact Us          

Dealer Login:
Additional product information is available by clicking on logos at top of home page block 08.jpg

All BOAB Poly Tanks are BPA free

Scroll down for a comprehensive range of heavy duty poly water tanks in a choice of sizes and shapes for almost any vehicle related application. 

Designed to withstand 4WD and off-road conditions and made from food grade polyethylene these hard wall tanks do not taint the taste of water and can be easily cleaned should it be necessary to top up with brackish water at any time. 

Tip: When filling a water tank use only drinking water grade hose (not a common garden hose), or else you are adding tainted water to start with!
Cleaning/Storage:  Water in any type of small tank (stainless steel or Poly) will get stale and have a taint to the taste over a period of time.  Tanks are best stored completely dry.   Tanks should be cleaned periodically and we recommend using "Milton" ( baby bottle washing compound).
If a bad taste persists use Bi-Carb of Soda to flush out the tank and repeat as necessary.
Capacity:  Poly tanks are roto-molded using an oven.  Tanks cool at different rates depending on the time of year and this can lead to different levels of shrinkage - thus to small variances in capacity between the same model of tank.  Stated capacities are approximate.










 120 Litre Poly Water Tank

Great for in ute or truck trays and suits some camper trailers or other applications.

Dimensions: 820W x 300H x 500Deep mm

Fittings:   Screw cap filler,  12mm diam hose spigot outlet
Item No: WTP120u



27 Lt Water Bladder

Ideal way to carry water for picnics, camping and other trips. Bladder design almost eliminates water sloshing noise when carried inside vehicle.

Two carry handles are sewn into the case making for easy removal for filling or to the campsite etc.  Folds flat when not needed to reduce storage space.

A "wine cask" style tap is fitted and is protected inside a velcro pouch at one end of the bladder. Bladder lining is food grade with no taste.

Dimensions:  950L x 350W mm - up to 125H mm when full.

Replacement liners are also available

Item No: WTB27
Replacement Liner Item No:  WTB27L etch.jpg folded etch.jpg




PolyWater Tanks suit Land Rover Defender 110
Pre 2007 Models = 36 Litres
2007 On Models = 32 Litres

Go to Defender Accessories for other products

Mounts under the LHS rear wheel arch area.  Filler extends through the floor into the luggage area.  A lockable tap is included in the kit and can be mounted in the rear bumper area.  A separate steel guard protects the tank.
Dimensions: 370-560W x 320H x 315D mm (pre 2007)
                       380-560W x 270H x 310D mm (2007 On) 

Fittings:  Fitting Kit and Instructions

Item No: WTP40LR  or WPT40LR2 for later model

Note: Fitting Fuel and Water Tanks is a specialised task and should only be undertaken by experienced and qualified workshop personnel.
Above Tank is WTP40LR as used in pre 2007 Models

WTP40LR2 Tank for 2007On Model Defenders
Above Tank is WTP40LR2 as used in 2007 On Model Defender 110






40 Litre Water Tank for Ute and Truck Trays

Designed to mount under the tray on either side.  Taper side to give clearance to mudflap / wheel.

Two outlets are provided on the base so that the tap can point outwards depending on which side of vehicle the tank is installed.

From April, 2011 production, this tank is fitted with brass nut inserts and 2 x universal mounting brackets.

Dimensions: 375-520W x 395H x 265D mm

Fittings:   Plastic tap, 1.5" BSP threaded insert fitted with adaptor and screw on cap.

Item No: WTP40Ute [3].jpg [2].jpg


45 Litre Flat/Vertical Water Tank

(now with new design to allow for fitment upright or lying flat)

This clever design poly tank is extremely strong and shaped to sit either standing up or lying flat.

Nutserts top and bottom allow for easy mounting solutions including underneath tray back utes..

 The tank has 1/2" brass outlets each side for connection of a hose and tap. This fitting uses std hardware plumbing thread to allow for custom installations.   Or order our std hose or 12v pump kit.

Dimensions: 1090W x 580H x 90D mm 

Fittings:  1/2: BSPT Brass thread outlet each end.  2 x M8 brass nutserts top and bottom to allow fitment.

Item No: WTP45FV

40 Litre Foot Well Water Tank

(now with new design to allow fitment into most 4WD wagons and dual cab utes)

This clever design poly tank is extremely strong and shaped to sit on the vehicle floor behind the front seats in cars and wagons.   The cutout spans the transmission tunnel.  The non slip top section can be used as a floor for children or for loading luggage etc.

If children are to be seated in the rear, the tank can be strapped to the front seat mounts using normal ratchet tie down straps.

 The tank has 1/2" brass outlets each side for connection of a hose and tap. This fitting uses std hardware plumbing thread to allow for custom installations.   Or order our std hose or 12v pump kit.

Dimensions: 1200W x 190H x 250D mm
Transmission Tunnel Cut-out:  420mm W at base x 110H 
Cut-out to suit centre console 200W x 60D mm (approx)

Fittings:  1/2: BSPT Brass thread outlet each end.  2 x M8 brass nutserts each end to allow fitment of carry handles or other mounting/lifting solutions (no handles included)

Item No: WTP40FW
  [2].jpg [3].jpg


58 Litre Universal Water Tank

Ideal for use on roof racks or in the rear of vehicles.

outlets on both corners alow for mounting either on base or on its side.

Nutserts at each end make for easy mounting in any situation.

840L x 345W x 235H mm

Filler sold seperately/

Item No: WTP60FV

Options:  1.5m hose and tap kit (WTPHK2)

                  Filler kit (WTPFK1)[2].jpg[3].jpg





50 Litre Taper Universal Mount Water Tank

The taper back is intended to maximise space usage behind seats or in ute well body trays.

Universal application in custom storage systems, motorhomes and other applications.

Dimensions: 1000W x 350H x 200-150D mm

Fittings:   Screw cap filler,  1/2" BSPT brass outlet.

Item No: WTP50T

Options:  1.5m hose and tap kit (WTPHK2) or 12v Electric pump and matching hose kit. [3].jpg



42 Litre Vertical Cut-Out Water Tank

New design to allow fitment to a wider range of vehicles, including even the smaller 4WD wagons and most dual cab utes. 

The cut-outs fit over the wheel arch inside Wagons and also in the Tray of most Double Cab Utes.  Uses mostly wasted space and being so thin the water sloshing noise is minimal.

Food grade Poly ensures no bad taste (remember to only fill using drinking water hose - not the garden hose!, otherwise the water will be tainted before it enters the tank.

Secure using ratchet or metal straps (not included)

Dimensions: 1295W x 600H x 75D mm
Cut-outs each side: 300H x 200W mm

Fittings:   Screw cap filler,  1/2" BSPT brass outlet in recess.

Item No: WTP48V[4].jpg







55 Litre Universal Mount Water Tank

Another universal application poly tank that is ideal in the tray of utes or on roof racks.

An identical shape tank for fuel is also available (suits Petrol and Diesel - refer Part No: FTU55P)

Dimensions: 1120W x 310H x 200D mm
The recess for the outlet is 80 x 80 mm (approx)

Fittings:   Screw cap filler,  Ball valve with 12mm diam hose spigot

Item No: WTP55U

Options:  1.5m hose and tap kit (WTPHK2)[2].jpg[3].jpg

80 Litre Flat Under Tray HD Water Tank

A heavy wall poly tank designed for under truck and ute trays or under off-road caravans.  Tank can be retained with metal strap or sit in a custom built frame at time of tray manufacture.

Designed for remote filling and draining, threaded inserts allow a choice of readily available poly or metal pipe fittings to be used to connect filler hose or taps etc.

The filler uses a 1.5" BSP thread with an adjacent 1/2" BSP insert to attach a fast fill breather line if necessary. Two 1/2" BSP outlets are fitted on the bottom to give a choice of exit to the tap or plumbing system.

Dimensions: 805W x  1070L mm

Height: Tank - 110mm, Inlet position - 170mm, outlet position - 140mm

Fittings:   No fittings or hoses are included as standard.

Item No: WTP80F[2].jpg[3].jpg