The Enduraplas 1100 Gallon 15 Degree Cone Bottom Tank (SKU EP-THC01100K-BK) is a closed-top black polyethylene tank on a 15-degree cone with a matched metal stand, built for jobs where you need to drain completely and dose or transfer chemistry. It carries a 1.9 specific gravity rating, stands 113" tall on a 60" diameter footprint, weighs 700 lb empty, and comes with a 3" outlet at the cone tip and a 16" lid up top. The black polyethylene body blocks light to slow algae growth in stored solutions.
Will it work for your job?
Size to weight, not just volume. Filled with water this tank holds roughly 9,174 lb, and at its full 1.9 SG rating the contents can reach about 17,431 lb. That rating is what lets it hold dense chemistry that would overstress a standard 1.0-1.5 SG tank. The metal stand elevates the 3" cone outlet so you can gravity-drain into a pump, tote, or applicator without a pit. If you are unsure the 1100 gallon size matches your batch or drawdown needs, run the numbers in our Tank Sizing Calculator and cross-check against the Tank Sizing Guide. Confirm the 3" outlet and 16" lid clearances against your plumbing and fill line, and see the technical drawing on this page for the cone height and overall dimensions before you set the stand. The tank ships with those two openings only; select and source your own valve, bulkhead, and gasket hardware to match your chemistry.
Chemical compatibility
This is a polyethylene tank rated to 1.9 specific gravity, with compatibility drawn from the Snyder Industries OEM chemical resistance chart. The resin is listed as HDLPE with a question mark, so confirm HDLPE vs XLPE before committing it to chemical service. Every rating below is concentration- and temperature-specific; verify your exact chemical, concentration, temperature, and fitting plus gasket material before ordering.
At the full 1.9 SG rating this tank can hold, per the OEM chart: Ethylene Glycol (100%, PVC fittings, EPDM gasket), Ferric Chloride (50%, PVC, EPDM), Ferric Sulfate (60%, PVC, EPDM), Hydrochloric Acid (37%, PVC, Viton), Hydrofluoric Acid (48%, PP/PVC, Viton), Hydrofluosilicic Acid (26%, PP/PVC, Viton), Hydrogen Peroxide (50%, PVC, Viton), Phosphoric Acid (85%, PVC, Viton), Sulfuric Acid (98%, CPVC, Viton), Sodium Hypochlorite (up to 16.5%, PVC, Viton), Peracetic Acid (30%, 316SS, Aflas), Potassium Carbonate (50%, PVC, EPDM), Potassium Hydroxide (saturated, PVC, EPDM), Sodium Thiosulfate (40%, PVC, EPDM), Sodium Bisulfate and Sodium Bisulfite (PVC/PP, EPDM), Propylene Glycol (PP/316SS, EPDM), Zinc Orthophosphate (PP/316SS, EPDM), and Polyaluminum Chloride (PVC, EPDM). Lower-density loads also cleared include Acetic Acid (60%), Aluminum Sulfate (50%), Calcium Chloride (40%), Magnesium Chloride (30%), Sodium Carbonate (30%), Ferrous Sulfate (20%), Ozonated Water (up to 10 PPM), DEF (32.5%), and Urea Solution (50%).
A simple gasket rule from the chart: oxidizers and strong acids (hydrochloric, sulfuric, phosphoric, hydrogen peroxide, sodium hypochlorite, the HF acids) call for Viton; salts, glycols, and bases run on EPDM; peracetic acid needs Aflas. Watch the metal-fitting outliers too: peracetic acid, DEF, and the 316SS option on propylene glycol and zinc orthophosphate require 316 stainless fittings and specialty gaskets, not PVC or PP. The single most expensive mistake on a cone-bottom chem tank is pairing an EPDM gasket with an oxidizer that the chart flags for Viton, or substituting PVC where 316SS is required. Confirm your pairing against our Chemical Compatibility Database before you plumb it.
Freight
This tank ships LTL freight, quoted live to your ZIP from the nearest Enduraplas plant in Converse, TX or Neche, ND. Get a freight rate with our Freight Cost Estimator, or call 866-418-1777 to confirm the HDLPE vs XLPE resin question, fitting and gasket selection, and lead time before you order.
