The Chem-Tainer 112 Gallon PE Rectangular Open Top Tank is a polyethylene rectangular open-top vessel built for batch mixing, secondary containment staging, parts washing, water transfer, and any application where you need full top access to the working volume. It holds 112 gallons and, filled with water, carries a static load of roughly 934 pounds - the single number that drives your stand, pad, and floor decisions more than any other spec on this page. The open top makes filling, manual additions, and visual level checks straightforward, and the rectangular footprint seats flat against a wall or inside a basin without the wasted corners of a round tank.
Will this open top tank work for your application?
This is a water-service rectangular open top tank, so size it to the working volume you actually need, not the brim capacity. A tank that runs near full will splash and surge during transfer or agitation, so leave freeboard. Use the Tank Sizing Calculator to match the 112-gallon capacity to your batch or holding requirement, and the Tank Sizing Guide if you are deciding between a rectangular open top and another geometry. The full-water weight of 934 pounds is the figure to design your support around: a 112-gallon rectangular tank concentrates that load over a relatively small flat-bottom footprint, so a level, continuous-bearing surface matters.
Fittings and outlets
This is an open top model, and no factory fittings or outlets are listed for it. Plan on bulkhead fittings or drain outlets being field-added, and confirm placement before you drill polyethylene - cutting into the wall changes how you support and seal the tank. If a pre-installed drain or specific outlet is a must-have for your install, call 866-418-1777 before ordering so we can confirm what is and is not available on this model.
Support it correctly
Set this tank on a flat, fully supported surface - never on point loads, joists, or an uneven slab. For an above-ground install on concrete, our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework for sizing the slab under a load like this. Because the top is open, also plan for cover, splash, and tip-over control if the tank lives in a traffic area or holds water you do not want fouled by debris.
The mistake to avoid
The most common error with an open top rectangular tank is treating the printed capacity as usable capacity and underestimating the support requirement. Fill to the brim and you not only invite overflow during fill or agitation, you load every edge of that flat bottom with the full 934 pounds at once. Size the support for the full-water weight, leave freeboard, and confirm the rectangular footprint clears your space before you commit. Review the technical drawing on this page for the dimensions, then check that footprint and height against your stand or containment area before ordering.
This Chem-Tainer rectangular open top tank ships LTL freight from West Babylon, NY, quoted live to your ZIP code. Get your freight quote with the Freight Cost Estimator, or call 866-418-1777 to talk through sizing, support, and delivery. For larger storage planning, see our work on industrial water reuse tank topology.
