Chem-Tainer 55 Gallon 20 Degree Plastic Vertical Cone Bottom Tank with Poly Stand

The Chemtainer 55 Gallon 20 Degree Vertical Cone Bottom Tank (SKU TC2247BP) pairs a 55-gallon closed-top polyethylene cone tank with a matching poly stand, so the 20-degree cone bottom drains fully without you building a separate frame. It stands 47" tall on a 22" diameter footprint, weighs 58 lb empty, and carries a 2.0 specific gravity rating with a 26" lid. The cone-and-stand format is built for batching, dosing, and full-drain transfer where you need every gallon out and nothing settling on a flat floor.

Will it work for your job

This is a 55 gallon vertical cone bottom tank rated to a 2.0 specific gravity, which is where the sizing math matters. Filled with plain water, 55 gallons weighs about 459 lb; at the tank's full 2.0 SG rating the contents can reach roughly 917 lb. Confirm your product's specific gravity stays at or under 2.0 before you fill, and set the poly stand on a level, load-rated pad that can carry the loaded weight. The 26" lid gives top access for filling and mixing, and the 20-degree cone plus stand height leaves room to plumb a bottom outlet and valve for gravity discharge. See the technical drawing on this page for the geometry, and use the Tank Sizing Calculator and Tank Sizing Guide to match capacity and weight to your process.

Chemical compatibility

This tank is polyethylene rated to 2.0 specific gravity. Its resin is recorded as HDLPE with a pending confirmation, so before any chemical service confirm HDLPE versus XLPE (crosslinked) construction for your product, temperature, and duty cycle — that resin question, not the SG rating, is the real open risk on this unit. Every chemical on the list below requires an SG of 1.9 or lower, so the 2.0 rating leaves headroom on all of them. Compatibility comes from the Snyder Industries OEM chemical resistance chart and is concentration- and temperature-specific — always verify your exact chemical, concentration, temperature, and the fitting and gasket materials before committing.

The chart splits neatly on gasket choice. A Viton group covers the aggressive acids and oxidizers: Hydrochloric Acid 37%, Hydrofluoric Acid 48%, Hydrofluosilicic Acid 26%, Hydrogen Peroxide 50%, Phosphoric Acid 85%, Sodium Hypochlorite under 16.5%, and Sulfuric Acid 98% — with sulfuric the one exception that needs CPVC fittings rather than standard PVC. An EPDM group covers the salts and glycols: Aluminum Sulfate 50%, Calcium Chloride 40%, Ethylene Glycol 100%, Ferric Chloride 50%, Ferric Sulfate 60%, Ferrous Sulfate 20%, Magnesium Chloride 30%, Polyaluminum Chloride, Potassium Carbonate 50%, Potassium Hydroxide saturated, Sodium Bisulfate, Sodium Bisulfite, Sodium Carbonate 30%, Sodium Thiosulfate 40%, Acetic Acid 60%, and Ozonated Water up to 10 PPM. Three entries break the plastic-fitting default: DEF 32.5% and Urea Solution 50% call for stainless (316SS or PP/PVC) with EPDM, Propylene Glycol and Zinc Orthophosphate want PP/316SS with EPDM, and Peracetic Acid 30% is the outlier that needs 316SS fittings and an Aflas gasket. Match your fitting and gasket to the chemical and confirm against the OEM chart and our Chemical Compatibility Database.

The mistake to avoid

The common miss on a cone-bottom chem tank is under-specifying the bottom-outlet fittings and gaskets. The tank body can be rated for your chemical while the wrong outlet gasket fails first — Viton on the acids and oxidizers, EPDM on the salts and glycols. Two products break the "reach for a PVC bulkhead" habit entirely: DEF and Peracetic Acid both require 316SS fittings, and peracetic needs an Aflas gasket. Verify resin (HDLPE vs XLPE), confirm your specific gravity stays under 2.0, and spec the exact fitting and gasket per your chemical before you order.

This tank ships LTL freight from West Babylon, NY, quoted live to your ZIP through our Freight Cost Estimator. For help matching the tank, cone drainage, and fittings to your chemical program, call 866-418-1777.