The Chem-Tainer 22 Gallon Rectangular Open Top Tank is a compact polyethylene reservoir for small-batch water handling, benchtop rinse stations, parts soaking, and portable open tank work where you need to reach in from the top. At 22 gallons in a rectangular open top format, it sits flat against a wall and squares up in tight corners better than a round drum, which is why buyers searching for a rectangular tank or an open top tank of this size land here.
Will it work for your job?
This is a water-service tank built from polyethylene. Filled to the brim with water it holds about 183 pounds of water, plus the weight of the tank itself, so the pad, cart, or shelf under it has to be rated for that fully loaded weight and not the empty figure. Because it is an open top design, it drops in cleanly for manual dipping, mixing, pour-off, and rinse cycles. Check the technical drawing on this page for exact outside dimensions so you can confirm the footprint fits your available space. If you are running grey-water, rainwater, or HVAC-condensate collection, our water reuse tank topology guide covers where a small open reservoir like this fits in the train. Not sure 22 gallons matches your throughput? Run the numbers through our Tank Sizing Calculator or read the Tank Sizing Guide before you commit.
A few things to get right
Two things trip up buyers on small open top tanks. First, plan for the loaded weight from day one; 183 pounds of water in a 22-gallon tank concentrates a real load onto a small footprint, so a flimsy shelf or an unlevel surface will flex or tip. If this tank lives outdoors or on grade, our guide on concrete pad sizing for above-ground polyethylene tanks walks through supporting it properly. Second, this is a plain open top vessel: our data shows no factory fittings, bulkhead, or bottom drain on it, so treat it as top-access only for dipping and pouring, not as a plumbed, sealed, or pressurized container. Keep it to atmospheric, top-access water duty and it will serve a long time.
Freight and ordering
This tank ships LTL freight from Chem-Tainer's plant in West Babylon, New York, with the cost quoted live to your ZIP code rather than bundled into the list price. Get an exact number in seconds with our Freight Cost Estimator, or call our team at 866-418-1777 to confirm dimensions, lead time, and the best freight option for your delivery point. We are glad to help you match this 22-gallon rectangular open top tank to the job before you order.
