The Enduraplas 1100 Gallon Black Cone Bottom Tank with Stand (SKU THC01100KB) is built for full-drain chemical batching, dosing, and metering, pairing a 1.9 specific gravity polyethylene tank with an integrated stand so the cone can gravity-empty into a pump, mixer, or transfer line. It stands 113" tall on a 60" diameter footprint, weighs 440 lb empty, and comes with a 3" PP female NPT bulkhead outlet at the cone tip and a 16" threaded vented manway on top. Those two penetrations are the only sealed openings on the tank, so they are exactly where you match gasket material to your fluid; no separate valve or fitting package is bundled. The black exterior blocks light to slow algae growth in feed and dosing service.
Will it work for your job
The tank carries a 1.9 specific gravity rating, meaning it is engineered to hold contents up to 1.9 times the weight of water. Run the numbers before you fill it: 1100 gallons of water weighs about 9,174 lb, and at the full 1.9 SG rating the maximum rated contents weight is roughly 17,431 lb resting on the stand and floor. Confirm your slab and anchoring can carry that load. At 1.9 SG this sits at the top of the poly rating range, so every chemical in the resistance chart is covered on tank strength alone; the limiting factor is fitting and gasket choice, not the tank wall. Because this is a cone bottom on a stand, the full volume drains through the 3" bulkhead with no manual sump-out, which is why it is a workhorse for coagulant, glycol, and acid feed systems. Size it against your batch volume and drawdown rate with our Tank Sizing Calculator and Tank Sizing Guide, and if you are weighing this stand against other configurations, the stand selection decision tree and Norwesco, Snyder, and Enduraplas compatibility matrix walk through the tradeoffs.
Chemical compatibility
This is an Enduraplas polyethylene tank rated to 1.9 specific gravity. The resin is recorded as HDLPE but not yet confirmed, so verify HDLPE versus XLPE with us before committing it to chemical service, since cross-linked and linear polyethylene do not carry the same chemical resistance. Chemical fit is concentration and temperature specific per the Snyder Industries OEM chemical resistance chart, and you must match the fitting and gasket materials to the fluid, not just the tank wall. Because this tank meets the 1.9 SG rating, it covers the heavier and more aggressive chemicals in the chart, including Hydrochloric Acid (37%, PVC fittings, Viton gaskets), Sulfuric Acid (98%, CPVC fittings, Viton gaskets), Phosphoric Acid (85%, PVC/Viton), Hydrofluoric Acid (48%, PP/PVC, Viton), Hydrogen Peroxide (50%, PVC/Viton), Sodium Hypochlorite (under 16.5%, PVC/Viton), Ferric Chloride (50%, PVC/EPDM), Ethylene Glycol (100%, PVC/EPDM), Peracetic Acid (30%, 316SS fittings, Aflas gaskets), and Polyaluminum Chloride (PVC/EPDM). Lower-SG chemicals such as DEF (32.5%, 316SS/EPDM), Urea Solution (50%, PP/PVC, EPDM), Calcium Chloride (40%, PVC/EPDM), and Acetic Acid (60%, PP/PVC, EPDM) sit well within this tank's rating. Confirm your exact chemical, concentration, and temperature against the OEM chart and the full Chemical Compatibility Database before you order fittings.
The mistake to avoid
The most common error on a cone bottom chemical tank is treating the 3" PP bulkhead and manway seal as universal. The tank shell can be rated for a chemical while the wrong gasket fails in weeks: Hydrochloric, Sulfuric, Phosphoric, Hydrofluoric, Hydrogen Peroxide, and Sodium Hypochlorite all call for Viton, while most salts and glycols use EPDM. Watch the entries that break the PVC default too: DEF, Peracetic Acid, Zinc Orthophosphate, and Propylene Glycol all specify 316SS fittings rather than PVC or PP, and Peracetic Acid is the lone chemical here that needs Aflas gaskets. A buyer defaulting to PVC on DEF or urea will corrode-mismatch the metering hardware. Match the gasket and fitting material to the fluid, and resolve the HDLPE versus XLPE resin question before you order, because that answer determines whether the whole chart applies. See the technical drawing on this page for outlet placement and manway dimensions.
This tank ships LTL freight from the Enduraplas plant in Neche, ND, quoted live to your ZIP. Get a freight number with our Freight Cost Estimator or call 866-418-1777 to confirm resin, gasket selection, and delivery for your 1100 gallon cone bottom tank with stand.
