The Chem-Tainer 45 Gallon PE Rectangular Open Top Tank is a compact, open-top polyethylene vessel built for water batching, washdown stations, parts rinse setups, and general-purpose open tank storage where you need to see the level, dip a hose in, or scoop product out. It holds 45 gallons and ships from Chem-Tainer's Delano, Minnesota plant. If you are sizing a rectangular open top tank for a tight footprint, its flat walls use bench and corner space more efficiently than a round drum of the same volume.
Will it work for your job?
Capacity is 45 gallons in a rectangular open-top format, molded from polyethylene. Filled with plain water, plan for roughly 375 lb of total load at the floor or stand - use that figure when you spec the bench, pad, or platform underneath it, because a partially supported open tank can deflect at the corners. Support the full base. The open top makes filling, manual cleaning, and visual level checks straightforward, and the flat rectangular walls sit flush against a wall or inside a containment tray. See the technical drawing on this page for the exact outside dimensions, fill height, and wall thickness before you build the stand or cut a containment basin to fit.
What ships, and how
This is an open-top tank, so there are no pre-installed bulkhead fittings in this configuration. If you need a drain or outlet, plan to add one through the wall - read the wall thickness off the technical drawing first, then match a bulkhead fitting rated for that wall before you drill. This vessel moves by LTL freight, quoted live to your ZIP, out of the Delano, Minnesota plant. That is the nearest (and only) named ship point for this tank, so freight cost scales with how far you are from southern Minnesota. Get an exact number with the Freight Cost Estimator before you commit to the size.
Sizing it right - the mistake to avoid
The most common open-top sizing miss is treating the 45-gallon rating as usable working volume. Open tanks need freeboard - leave room above your fill line for sloshing, hand-mixing, or aeration, or you splash product over the rim every time you move the tank. Work backward from your actual batch size and add headroom rather than filling to the brim; the drawing's fill height will tell you how much usable depth you actually have. The Tank Sizing Calculator and our Tank Sizing Guide walk through that math. If this open top will live on a poured base, the concrete pad sizing guide covers building a base that carries the 375 lb full-water load without cracking.
Ready to size and ship one? Run your ZIP through the Freight Cost Estimator for a live LTL quote from Delano, Minnesota, or call 866-418-1777 and we will help you confirm the rectangular open top tank dimensions, support requirements, and freight before you order.
