The Chem-Tainer 37 Gallon PE Rectangular Open Top Tank is a compact polyethylene batch and holding tank built for water and general non-pressurized service where you need an open top for easy filling, mixing, or manual dip access. At 37 gallons in a rectangular open-top format, it fits tight footprints - benches, truck beds, wash stations, and utility corners - where a round tank would waste space. Molded from polyethylene by Chem-Tainer, it holds 309 lb full of water, so plan your stand or floor for that load.
Will this open top tank work for your setup?
This is a rectangular open top tank, so the full water surface is accessible from above - handy for adding product by hand, skimming, netting, or dropping in a pump or float. The open-top design is not a sealed or pressure-rated configuration, so it suits gravity fill and atmospheric storage rather than closed-loop or pressurized plumbing. Full to the brim, this tank carries 309 lb of water; if you plan to set it on an elevated stand or a poured pad, size the support for that load - our concrete pad sizing guide for above-ground polyethylene tanks walks through the framing. Use the Tank Sizing Calculator and Tank Sizing Guide to confirm this rectangular tank matches your volume and space before you order. For open-top holding duty across grey-water, rainwater, or HVAC condensate collection, the industrial water reuse tank topology guide covers how these tanks fit an aggregation train.
How it ships
This tank ships by LTL freight, quoted live to your ZIP code, from the Chem-Tainer plant in Delano, Minnesota. Because freight on tanks depends on your delivery location and site access, get an exact number before you buy with the Freight Cost Estimator or by calling 866-418-1777. LTL rates vary by distance and accessorial needs - liftgate, residential, or limited-access delivery - so confirm those details up front.
The mistake to avoid
Do not treat an open top tank as a match for chemical or covered-storage service just because it holds liquid. This is a water and general-purpose open-top vessel; if you later need a sealed lid, closed-top containment, or storage of anything heavier than water, that changes the tank and the specification. Verify the working details in the technical drawing on this page, and match the tank to the actual weight of what you are storing - the 309 lb figure assumes plain water at full capacity.
Ready to move? Get your exact freight number with the Freight Cost Estimator or call 866-418-1777 to lock in your order. For help matching size to your job, start with the Tank Sizing Guide.
