The Enduraplas 1100 Gallon Green Cone Bottom Tank (SKU THC01100G) is a cone bottom polyethylene vessel built for batching, dosing, and full-drain chemical service where you need every gallon to evacuate. It stands 103 inches tall on a 60 x 60 inch footprint, holds 1,100 gallons, and carries a 1.9 specific gravity rating - the heavy-duty end of cone bottom resin, sized for dense liquids that a standard 1.5 SG tank is not rated to hold. Filled with water the contents weigh 9,174 lb; loaded to its full 1.9 SG rating the contents can reach 17,431 lb, so the supporting stand and pad have to be engineered for that worst-case mass, not the water figure.
Will this cone bottom tank work for my application
The sloped bottom drains completely to a single low point, which is why operators choose a cone tank over a flat-bottom drum for slurries, settling solids, and chemicals you blend then transfer. Because a cone bottom tank carries its load on a stand rather than the ground, the stand is part of the system: match it to the 60-inch footprint and the 17,431 lb rated contents weight. Use this 1.9 SG model as a buying gate - if your fluid's specific gravity is at or under 1.5 you are overbuying here, and this premium rating earns its place only for dense liquids like the high-concentration acids and brines listed below. The 1.9 rating is also the ceiling on this tank: fluids denser than 1.9 exceed it, and our record shows no higher-SG cone option in this size, so call us if that is your service. Our Cone Bottom Tank Stand Compatibility Matrix for Norwesco, Snyder, and Enduraplas walks the stand pairing, and the Tank Sizing Calculator and Tank Sizing Guide help you confirm 1,100 gallons is the right working volume before you commit.
Chemical compatibility
This is an HDLPE-style polyethylene tank rated to 1.9 specific gravity. The resin code on our record ends in a question mark, so before any chemical service confirm HDLPE versus XLPE (cross-linked) with us at 866-418-1777 - the two resins behave differently against certain oxidizers and solvents. Compatibility below is taken from our chemical compatibility data and is concentration- and temperature-specific; verify your exact concentration and operating temperature before ordering fittings.
Chemicals this 1.9 SG tank handles, with the recommended fitting and gasket materials: Acetic Acid (60%) - PP/PVC fittings, EPDM gaskets; Aluminum Sulfate (50%) - PVC, EPDM; Calcium Chloride (40%) - PVC, EPDM; DEF (32.5%) - 316SS, EPDM; Ethylene Glycol (100%) - PVC, EPDM; Ferric Chloride (50%) - PVC, EPDM; Ferric Sulfate (60%) - PVC, EPDM; Ferrous Sulfate (20%) - PVC, EPDM; Hydrochloric Acid (37%) - PVC, Viton; Hydrofluoric Acid (48%) - PP/PVC, Viton; Hydrofluosilicic Acid (26%) - PP/PVC, Viton; Hydrogen Peroxide (50%) - PVC, Viton; Magnesium Chloride (30%) - PVC, EPDM; Peracetic Acid (30%) - 316SS, Aflas; Phosphoric Acid (85%) - PVC, Viton; Polyaluminum Chloride - PVC, EPDM; Potassium Carbonate (50%) - PVC, EPDM; Potassium Hydroxide (saturated) - PVC, EPDM; Propylene Glycol - PP/316SS, EPDM; Sodium Bisulfate - PVC/PP, EPDM; Sodium Bisulfite - PVC/PP, EPDM; Sodium Carbonate (30%) - PVC, EPDM; Sodium Hypochlorite (<16.5%) - PVC, Viton; Sodium Thiosulfate (40%) - PVC, EPDM; Sulfuric Acid (98%) - CPVC, Viton; Urea Solution (50%) - PP/PVC, EPDM; Zinc Orthophosphate - PP/316SS, EPDM; and Ozonated Water (up to 10 PPM) - PVC, EPDM. The mistake to avoid is matching the tank resin but using the wrong gasket and fitting. Three rows make the point: Sulfuric Acid at 98% needs CPVC fittings - not the PVC used elsewhere - with Viton; Sodium Hypochlorite below 16.5% needs PVC with Viton, not EPDM; and Peracetic Acid at 30% needs both 316SS fittings and an Aflas gasket. The oxidizers and strong acids fail the wrong elastomer first even when the polyethylene itself is fine. Cross-check your service against the full Chemical Compatibility Database.
Fittings, gauging, and signage
Our record carries no published factory fitting schedule for this listing, so confirm outlet count, size, and placement at 866-418-1777 before you specify valves or pumps - and see the technical drawing on this page for overall geometry. Plan vent, fill, level, and drain placement up front using our guide on tank top fitting placement strategy, choose the right level technology with our tank level gauge selection guide for chemical service, and keep the installation compliant with our tank label and signage compliance guide.
This tank ships LTL freight from the Enduraplas plant in Neche, ND - the nearest named shipping point on our record - and freight is quoted live to your ZIP. Get a number in seconds with the Freight Cost Estimator, or call 866-418-1777 to confirm specs, the resin code, and your delivery before you order.
