Chem-Tainer 90 Gallon PE Rectangular Open Top Tank

The Chem-Tainer 90 Gallon PE Rectangular Open Top Tank is a 90-gallon polyethylene open-top vessel built for batch mixing, parts washing, secondary containment staging, and general water handling where you need full top access for filling, stirring, dipping, or cleaning out. As a rectangular open top tank, it seats efficiently against walls and in corners and uses floor space more economically than a round drum of the same volume, with no pour-spout bottleneck and easy reach all the way to the bottom.

Will it work for your setup?

Filled to capacity with water, plan for roughly 751 lb of full water weight bearing on the pad or platform underneath it, so confirm your floor, bench, or stand is rated for that loaded weight before you fill. That 751 lb is the in-service pad load, not the shipping weight; the tank itself ships empty. Use the Tank Sizing Calculator and the Tank Sizing Guide to check that 90 gallons matches your batch volume and footprint, and review Concrete Pad Sizing for Above-Ground Polyethylene Tanks if this tank is going on a poured pad.

Common mistake to avoid

The biggest error with an open top tank is treating it like a sealed, plumbed tank. This vessel ships as a polyethylene open top tank with no factory fittings or lid listed in its spec pack, so if your process needs a bottom drain, bulkhead outlet, or overflow, plan that as a field addition and locate it correctly before the tank goes into service. Because it is open-top with no cover listed, the contents are exposed to evaporation, splash, and debris, so plan for whether your application needs a cover, especially if the tank lives outdoors or near foot traffic. To spec a bulkhead fitting and gasket for your exact port location, call 866-418-1777 and we will help you size it before install. If you are weighing this against a faster-draining design, the comparison in Chem-Tainer Cone-Bottom Tanks 30 vs 45 degrees is worth a read before you commit.

Specs and the technical drawing

For exact outside dimensions and the open-top opening, see the technical drawing on this page before you measure your space. The drawing is the authority on physical fit; the listing covers the essentials: 90-gallon capacity, polyethylene construction, rectangular open-top format.

This tank ships LTL freight from West Babylon, New York, with the rate quoted live to your ZIP code, since a rectangular open top tank ships as oversized freight rather than parcel. Get your freight estimate with our Freight Cost Estimator, or call 866-418-1777 and we will quote it and confirm fit for your application.