Chem-Tainer 70 Gallon PE Rectangular Open Top Tank

The Chem-Tainer 70 Gallon PE Rectangular Open Top Tank is a polyethylene rectangular open top tank built for accessible, top-loaded water storage where you need to dip, scoop, mix, or monitor by hand. The open top format makes it a practical pick anywhere a sealed lid gets in the way: batch mixing stations, parts wash and rinse setups, rainwater catchment under a downspout, condensate collection, and general utility water holding. Holding 70 gallons in a footprint that tucks against a wall or fits on a bench or platform, this open tank gives you straightforward fill-and-draw access without the overhead clearance a closed vertical tank demands.

Will this work for your job?

This is a 70-gallon rectangular open top tank molded from polyethylene by Chem-Tainer. The rectangular shape is the deciding factor for many buyers: it seats flat against walls and inside tight equipment bays where a round tank wastes corner space, and the open top means you load, mix, and access from above. Filled to capacity with water, the tank carries about 584 lb, so plan your stand, platform, or pad to support that fully loaded weight on a level base. Polyethylene tanks should sit on a flat, continuous surface across the entire bottom — never on isolated supports or an uneven slab. If you are unsure whether 70 gallons matches your draw rate and storage needs, run the numbers with our Tank Sizing Calculator or read the Tank Sizing Guide before you commit.

How it ships

This open top tank ships LTL freight from West Babylon, New York, and freight is quoted live to your ZIP code. Because it cannot be sealed or stacked, an open-top rectangular tank travels as a bulky, low-density LTL item — handling and cubic space drive the cost more than weight does, so the only reliable number is a quote to your exact delivery point. Get that before you order with our Freight Cost Estimator, or call us at 866-418-1777 and we will quote it for you. Tell us if you need a liftgate or have a residential or limited-access delivery so the carrier sends the right equipment.

The mistake to avoid

The most common error with an open top tank is treating it like a sealed pressure or transport vessel. This tank is designed for atmospheric, stationary, top-access water storage — it is not rated to be pressurized, sealed and shipped full, or run as a closed process vessel. Match it to gravity-fill and open-draw service. For larger projects, our guides on concrete pad sizing for above-ground polyethylene tanks and industrial water reuse tank topology walk through how rectangular open tanks fit into rainwater, grey-water, and condensate aggregation trains.

Since the rectangular footprint is what makes or breaks the fit, check the technical drawing on this page before you finalize anything: confirm the overall length, width, and height, the wall height for splash and freeboard, and any molded fitting locations. Then get your LTL freight quote to your ZIP through the Freight Cost Estimator or call 866-418-1777, and lean on the Tank Sizing Calculator if you are still dialing in capacity.