The Chem-Tainer 28 Gallon PE Rectangular Open Top Tank is a compact polyethylene vessel built for small-batch water handling, parts soaking, dosing make-up, and benchtop or floor-level storage where you need full top access. At 28 gallons in a rectangular open-top format, it fits tight footprints and slots cleanly into wash stations, secondary containment trays, and equipment rooms that a round tank wastes space around. If you have been searching for an open top tank, a rectangular open top tank, or a simple open tank for a confined work area, this is the size that solves it without overbuilding.
Will it work for your application?
This is a 28-gallon rectangular open top tank molded in polyethylene. Filled with water it carries roughly 234 lb full water weight, so plan your stand, shelf, or pad for that loaded number rather than the empty shell. The open top gives you unrestricted access for filling, scooping, mixing by hand or with a portable mixer, and cleaning out between batches. Because it is an open-top design, it is intended for vented, atmospheric service at floor or counter level, not pressurized or fully sealed storage. It ships as an open-top vessel; no factory outlets or fittings are listed for this model, so plan to add any drain or bulkhead you need after install. To confirm 28 gallons matches your draw-down, refill cycle, and available floor space, run the numbers through our Tank Sizing Calculator and review the Tank Sizing Guide before you commit to a size.
Specs at a glance
- Capacity: 28 gallons
- Material: polyethylene
- Type: Rectangular Open Top Tank
- Full water weight: ~234 lb
- Ships from: West Babylon, NY
- Freight: LTL, quoted live to your ZIP
Reference the technical drawing on this page for the rectangular footprint, overall height, and wall detail so you can verify clearance under faucets, shelving, or containment curbs. The full water weight of about 234 lb is the figure that matters for whether you set this directly on a floor, a reinforced shelf, or a level pad. Confirm your supporting surface is flat and continuous under the full base, since rectangular tanks transfer load across the bottom and corners and do not tolerate point-loading or an uneven sub-surface well. Above-ground placement on a proper pad pays off in tank life; our guide on concrete pad sizing for above-ground polyethylene tanks covers the framework if this tank goes outdoors or on a permanent base.
The mistake to avoid
The common error with an open-top rectangular tank is treating it like a closed vertical tank. It is vented by design, so do not specify it for sealed or pressurized duty, and do not skip a level, fully supported base assuming the flat bottom forgives an uneven floor. Match the tank to vented, atmospheric water service, support the full base, and account for the loaded weight in your stand or shelf rating. If this open-top buffer is part of a larger reuse or aggregation setup, our breakdown of industrial water reuse tank topology shows where a small vessel like this fits in the sequence.
This tank ships LTL freight from the Chem-Tainer plant in West Babylon, NY, with freight quoted live to your ZIP. Get your exact number with the Freight Cost Estimator, or call 866-418-1777 to confirm specifications and arrange delivery.
