The Chem-Tainer 157 Gallon PE Rectangular Open Top Tank is a polyethylene rectangular open-top vessel built for bulk water handling and any job where you need full top access to the contents. At 157 gallons, the open top lets you add product, draw from the top, or hand-clean the interior - things a closed tank makes harder. It carries the flat, stable proportions buyers look for in a rectangular open top tank or open tank: a low footprint that sits well on a pad, shelf, or platform.
Will this tank work for your job?
This is a 157-gallon rectangular open top tank molded in polyethylene by Chem-Tainer. The pad and supporting structure are the part to get right: filled to capacity with water, the contents alone weigh about 1,309 lb, so design the base for at least that load plus the empty tank weight. An open rectangular PE tank needs a flat, continuously supported, level surface that carries the entire base - the rectangular geometry spreads the load across the footprint, but the walls and corners are the high-stress zones at full head, so the pad must be flat with no point-loading at the edges. If you are not sure 157 gallons matches your throughput or storage need, run the numbers with our Tank Sizing Calculator and review the Tank Sizing Guide first. For dimensional detail, see the technical drawing on this page.
Mistake to avoid
The most common error with an open top rectangular tank is treating it like a sealed or pressure vessel. It is not - the open top means the contents are exposed to the air, to evaporation, and to anything that can fall in, so it suits vented, atmospheric service rather than applications that need a sealed lid or pressure rating. Because the top is open and the tank sits exposed, plan for freeze protection on any outdoor cold-climate install; our fire-water reservoir tank design guide covers freeze-protection engineering for cold-climate service. This listing is a water-service open top tank, so confirm your contents and configuration are right for that use before ordering. If you need a closed or fitted version instead, call us at 866-418-1777 and we will point you to the right model.
Freight
This tank ships LTL freight from West Babylon, New York, and freight is quoted live to your delivery ZIP - we never bundle it into the list price. Get an exact number for your address with the Freight Cost Estimator, or call 866-418-1777 for help with delivery, accessory selection, or confirming fit. Storing reclaimed or process water? Our industrial water reuse tank topology guide covers quality-banded storage for grey-water, rainwater, and condensate. And before an above-ground install, our guide on concrete pad sizing for above-ground polyethylene tanks walks through building a base that carries the full water weight safely.
