The Chem-Tainer 37 Gallon PE Rectangular Open Top Tank is a compact polyethylene rectangular vessel built for batching, washdown, parts-soaking, and small-volume water handling where an open top keeps filling, dipping, and cleaning simple. At 37 gallons in durable polyethylene, it fits onto a bench, a skid, or a pump cart without the footprint of a larger vertical tank, and the open-top design lets you drop in a mixer, a float, or a hand pump without fighting a closed lid. It is the rectangular open top tank operators reach for when shop floor space is tight and the job is fill-and-draw.
Capacity: 37 gal · Full water weight: ~309 lb · Material: polyethylene · Type: Rectangular Open Top Tank
Does it work for your job?
This is a 37-gallon open-top rectangular tank molded in polyethylene. The square-shouldered rectangular shape uses floor space more efficiently than a round tank of the same volume, which is why this open tank shows up in tight equipment bays, mobile rigs, and shop corners. Filled with water it carries roughly 309 lb, so plan your stand, shelf, or pad to carry that load with margin and keep the tank fully supported across its base rather than bridging it across rails. Because the top is open, this tank is built for vented, atmospheric storage and process work, not for pressurized or fully sealed containment. If you are not sure whether 37 gallons is the right working volume for your fill-and-draw cycle, run the numbers in our Tank Sizing Calculator or read the Tank Sizing Guide before you commit.
What to get right before you buy
The common mistake with an open-top rectangular tank is treating it like a flat-walled box that can take any side load. Polyethylene rectangular walls flex more than a round wall does under a full head of liquid, so support the tank on a flat, continuous surface and avoid clamping fixtures or fittings that pull on a single wall. This tank ships as an open-top vessel with no pre-installed fittings or gaskets, so any bulkhead fitting, drain, or gasket is a separate add you spec to your application. If you do add a bulkhead fitting, place it low and on a flat panel, and check the wall thickness at that point against your fitting's torque spec. Confirm the tank clears your bench, cabinet, or cart opening before ordering. This tank is sized and shaped for general water and process duty as an open tank; if your application drifts toward aggressive chemicals, that is a different specification entirely.
Freight and ordering
This tank ships LTL freight from West Babylon, NY, the stocking plant for this Chem-Tainer item, and freight is quoted live to your ZIP rather than bundled into the list price. Get an exact number in seconds with our Freight Cost Estimator, or call us at 866-418-1777 and we will price the lane and confirm availability. If this open-top tank is part of a larger rainwater, reuse, or above-ground storage build, our guides on concrete pad sizing for above-ground polyethylene tanks and industrial water reuse tank topology will help you place this tank correctly in the system.
