The Chem-Tainer 37 Gallon Rectangular Open Top Tank is a compact polyethylene vessel built for water storage, batching, and washdown work where an open top makes filling, mixing, and manual access easy. Its rectangular footprint fits tight benches, truck beds, and equipment skids better than a round tank of the same volume, which is why buyers searching for a rectangular open top tank or an open tank in this size land here. Below are answers to the three questions that matter before you buy: whether it fits your job, how it ships, and the one detail people get wrong.
Will it work for your application
This is a 37-gallon rectangular tank molded in polyethylene by Chem-Tainer, with an open top for straightforward filling and hand access. Filled to capacity with water it carries about 309 pounds, so plan your stand, shelf, or pad to support that fully loaded weight rather than the light empty tank. Confirm the exact interior and exterior dimensions against the technical drawing on this page before you commit to a footprint, since the open-top design means rim height and the top opening drive how you fill and reach into it. To size a batch volume or match this tank to a daily draw, run the numbers through our Tank Sizing Calculator or read the Tank Sizing Guide.
How it ships
This tank ships LTL freight from the Chem-Tainer plant in West Babylon, New York, with the cost quoted live to your ZIP code. An open top tank ships as a single molded unit, so the crate is bulky relative to its roughly 309-pound full-water weight, and freight is priced by dimensions as much as by poundage. Get a real number for your address using our Freight Cost Estimator before you order so there are no surprises at delivery.
The mistake to avoid
The most common error with an open top tank is treating it like a sealed pressure or transport vessel. It is not. This is a gravity, atmospheric-pressure container meant to sit level and be filled from above; it is not rated for a tight-lidded closed system or for hauling liquid down the road sloshing in an open bed. Keep it on a flat, fully supporting surface. It is rated for water storage; contact us before storing other liquids. For water reuse, rainwater, or grey-water setups, our guide on industrial water reuse tank topology covers how open storage fits into a treatment train, the concrete pad sizing framework walks through supporting a filled tank on a proper base, and if this feeds a small rural fire reserve, the fire-water reservoir design guide covers NFPA 22 sizing discipline.
Ready to size, freight, or order this rectangular open top tank? Get your freight quote through the Freight Cost Estimator, or call us at 866-418-1777 and we will help you match the tank to your application and quote LTL shipping to your ZIP.
