The Chem-Tainer 90 Gallon Polypropylene Open Top Batch Storage Tank (SKU R244818B) is a rectangular open-top tank built for water batching, mixing, and short-term holding where you need full top access. It measures 48 inches long by 24 inches wide by 18 inches tall, so it sits low on a 48.0 x 24.0 inch footprint and drops into tight bench, cart, or under-mixer spaces a tall cylindrical tank can't reach. It's molded from polypropylene rather than the polyethylene used on most water tanks, a material buyers typically specify when a batch or mixing process runs warmer than standard polyethylene is comfortable with. Nominal capacity is 90 gallons.
Will it work for your batch?
This is an open top, rectangular open top tank, so the entire top is accessible for hand-loading, dip tubes, agitators, or manual dosing. The low 18-inch height keeps the working surface within easy reach for a standing operator, which is the main reason people pick an open tank over a closed cylinder for batch work. That same 18-inch maximum liquid depth means low static head at the base, so if you're drawing from the bottom to a pump or gravity line, the outlet head stays modest. Note that the tank ships with no pre-installed outlet or fittings — it's a plumb-it-yourself open batch tank, so plan your bulkhead or overflow penetrations around your own process. If you're still confirming batch volume against your process, run the numbers through our Tank Sizing Calculator and the Tank Sizing Guide before you order.
Placement and support
Because the walls are open at the top and the base is a broad rectangle, even weight distribution matters more here than on a self-supporting round tank. Filled to 90 gallons of water, the tank plus contents carries roughly 751 pounds, so set it on a continuous, level surface — a properly sized pad or benchtop that spans the whole 48 x 24 inch base and is rated for that load. Concentrated point loading or an unlevel stand will distort a rectangular open top over time. For above-ground installs on a slab, our guide on concrete pad sizing for above-ground tanks walks through the ACI framework for getting the support right.
Freight and ordering
This tank ships LTL freight from the Chem-Tainer plant in West Babylon, New York, with the rate quoted live to your ZIP code — never bundled into the list price. The empty tank ships far lighter than its 751-pound filled weight, so when you pull a number from our Freight Cost Estimator or call 866-418-1777, confirm the quote reflects the tank alone and not a filled figure. One mistake to avoid: this is a polypropylene batch storage tank, not a pressure or fully enclosed vessel, so keep it to open, vented, atmospheric water service and don't stack loads on it or seal a lid against it. Questions on fit, support, or lead time — reach us at 866-418-1777.
