• Box Tanks at BARR Plastics

Box Shaped Tanks

These compact rectangular tanks are made from seamless FDA-approved polyethylene, making them safe for potable water and liquid food products. They are also a popular choice as boat tanks where water storage is needed, available in heavy weight and marine strength. Additionally, they are UV stabilized for long-term outdoor use.

This tank is sold without pre-installed fittings, giving you the freedom to customize it to your needs. Whether you need it for water, waste, or another application, you can position it any way you like, but it may require a supporting framework around the tank to maintain its shape. Add the right fittings where they make the most sense for your setup.

To find your required accessories, view Valves, Fittings, Pumps, Hose & Hose Clamps.

These compact rectangular tanks are made from seamless FDA-approved polyethylene, making them safe for potable water and liquid food products. They are also a popular choice as boat tanks where...
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These compact rectangular tanks are made from seamless FDA-approved polyethylene, making them safe for potable water and liquid food products. They are also a popular choice as boat tanks where water storage is needed, available in heavy weight and marine strength. Additionally, they are UV stabilized for long-term outdoor use.

This tank is sold without pre-installed fittings, giving you the freedom to customize it to your needs. Whether you need it for water, waste, or another application, you can position it any way you like, but it may require a supporting framework around the tank to maintain its shape. Add the right fittings where they make the most sense for your setup.

To find your required accessories, view Valves, Fittings, Pumps, Hose & Hose Clamps.

Click on Part # to view tank drawing

Capacity Part # / Drawing Dia./ Width (in)
 Length (in)
 Height (in)
 Lid/Fill Opening (in)
 Fitting (in)
 Weight (lbs)
USG IG LTR
Heavy Weight
6 5 23 T5HW 11-3/4 15-3/4 7-3/4 N/A N/A N/A
7 6 27 T6HW 12 19-3/4 7 N/A N/A N/A
8 7 32 T7HW 10 23-3/4 8 N/A N/A N/A
10 8 36 T8HW 16 18 8 N/A N/A N/A
12 10 46 T10HW 16 24 8 N/A N/A N/A
16 13 59 T13HW 16-1/2 30 8 N/A N/A N/A
17 14 64 T14HW 18 18 12 N/A N/A N/A
18 15 68 T15HW 12 30 12 N/A N/A N/A
19 16 73 T16HW 12 42 9 N/A N/A N/A
22 18.5 84 T18.5HW 17 33 9 N/A N/A N/A
25 21 96 T21HW 14 35 12 N/A N/A N/A
28 23 105 T23HW 21 31 10 N/A N/A N/A
30 25 114 T25HW 19-1/2 21-3/4 16 N/A N/A N/A
31 26 118 T26HW 17 48 9 N/A N/A N/A
36 30 136 T30HW * 16 53 10 N/A N/A N/A
39 32 146 T32HW * 18 36 14 N/A N/A N/A
40 33 150 T33HW 16 49 11-1/2 N/A N/A N/A
66 55 250 T55HW * 25-1/2 38 15 N/A N/A N/A
102 85 387 T85HW * 28 41 21 N/A N/A N/A
138 115 523 T115HW * 30 48 24 N/A N/A N/A
* = Contain ribbed tank walls - see drawings

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