The Chem-Tainer 275 Gallon PP Cylindrical Open Top Tank (SKU TC4248AB) is a polypropylene open-top vessel that stands 48 inches tall on a 42 x 42 inch round footprint. With a natural white shell and a fully open top, it is built for batching, mixing, rinse stations, and gravity-fed water handling where you need access from above to add product, drop in a mixer, or check levels by eye. If you are searching for a white open-top tank in the 275-gallon range, this is the cylindrical Chem-Tainer that fits the bill.
Will it work for your job?
The open-top design gives you unobstructed access to the full 42-inch interior diameter, which makes it straightforward to clean out, add solids, or service equipment mounted at the rim. The polypropylene shell is a rigid, naturally vented wall for water, batching, and rinse duty - level it carefully so the open rim stays true and the contents do not slosh over a low spot. The single most decision-relevant number here is loaded weight, so size your stand or pad to it:
- Full water weight: ~2,294 lb
- Footprint: 42.0 x 42.0 in round (~165 lb per sq ft bearing when full)
- Height: 48 in | Material: Polypropylene | Color: Natural White
For sizing across your full storage need, run the numbers through our Tank Sizing Calculator or walk through the Tank Sizing Guide before you commit to a single vessel versus a multi-tank train.
Setup and placement
An open-top tank lives or dies on a flat, fully supported base. The 42-inch round bottom needs continuous contact with the pad - no overhang, no point loads. For above-ground installs, size the slab to that loaded weight using the framework in our guide on concrete pad sizing for above-ground tanks. If you are aggregating rainwater, grey water, or HVAC condensate into a banded storage setup, the industrial water reuse tank topology guide lays out how open-top vessels fit a quality-banded train.
The mistake to avoid
The common error with an open-top cylindrical tank is treating it like a closed, pre-plumbed tank. This is a bare open vessel - it ships with no pre-installed bulkhead fittings or outlets. If you need a bottom drain, side outlet, gasket, or cover, plan that as a separate field-installed item rather than assuming it arrives ready to plumb. Confirm the exact outside dimensions and wall behavior against the technical drawing on this page before you build the stand or order plumbing, since the open rim and round wall set the tolerances for any cover or mixer bracket you add.
This tank ships LTL freight, quoted live to your ZIP from the nearest stocking plant - Hanford, CA or Lincoln, NE. Get your exact freight number with our Freight Cost Estimator, or call 866-418-1777 and we will quote it for you. Listed price is before freight.
