The Chem-Tainer 90 Gallon Rectangular Open Top Tank is a straight-walled polyethylene vessel built for batch mixing, parts washing, secondary containment overflow, and general non-pressurized water handling where you need full-hand access from the top. Its rectangular footprint seats flat against a wall or inside a bund far more efficiently than a round tank of the same volume, and the open top means you can dip, ladle, plumb an overhead fill, or drop in a pump or agitator without fighting a small lid opening. Note that while some listings label this an "PP" tank, the tank material is polyethylene.
Will this open top tank work for your job?
This unit holds 90 gallons. Filled to the brim with water it carries roughly 751 lb, so the pad or bench under it has to be flat, continuous, and rated for that load before you fill — a rectangular tank concentrates weight along its base edges, not on a center point. If you are unsure the surface is adequate, our concrete pad sizing guide walks through the framework for above-ground polyethylene tanks. This open tank ships with no pre-installed fittings, so any bulkhead outlet or drain is added in the field where you want it — plan your penetration heights before you drill so you keep the working level you need. Confirm the base footprint and working dimensions on the technical drawing on this page before you build the stand or size the containment.
Sizing the rectangular tank right the first time
If 90 gallons is a starting estimate rather than a fixed requirement, confirm it against your real duty cycle. The Tank Sizing Calculator and the Tank Sizing Guide help you match capacity to drawdown and refill rate so you neither undersize the batch nor pay to freight a tank bigger than the job needs. If this open top tank feeds a grey-water, rainwater, or condensate reuse setup, our industrial water reuse tank topology guide covers how a vessel like this fits a quality-banded storage train.
Freight
This tank ships LTL freight from West Babylon, New York, quoted live to your ZIP code — an open-top rectangular tank is a bulky, low-density piece, so where it delivers drives the cost more than the weight does. Get an exact number with the Freight Cost Estimator, or call 866-418-1777 and we will quote the rectangular open top tank to your dock or curb and confirm lead time before you order.
