The Enduraplas 1100 Gallon Black Cone Bottom Tank is built for full-drain bulk chemical service where you cannot leave sediment or product sitting in the bottom. Molded in black polyethylene with a 1.9 specific gravity rating, this cone bottom tank stands 103 inches tall on a 60 by 60 inch footprint and discharges completely through the cone apex. The 1.9 SG rating is the headline number: it means the tank wall is rated to hold contents up to 1.9 times the density of water, which is what lets it carry dense concentrated acids and brines that would overstress a standard 1.0 SG water tank. This is the highest specific gravity rating offered on this tank, so there is no heavier-duty step-up needed for the chemicals listed below.
Will this tank work for your application?
This is a 1100-gallon cone bottom tank measuring 103 inches tall with a 60-inch diameter, designed to be mounted in a matching steel or poly stand so the cone can drain to a single low point. Full of water it carries roughly 9,174 pounds; at its maximum rated contents the tank is engineered for up to 17,431 pounds, and that headroom is exactly why you can run 98% sulfuric acid (SG near 1.84) or 50% ferric chloride here rather than in a 1.0 SG water tank. Plan your stand, anchoring, and slab around the loaded weight, not the empty tank. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm capacity and weight against your batch volume, and review the Cone Bottom Tank Stand Compatibility Matrix before you order a stand. This tank is supplied without pre-installed chemical fittings, so specify your bulkhead size, material, and gasket to your chemical; call 866-418-1777 to configure. Dimensional details are shown on the technical drawing on this page.
Chemical compatibility
This is an HDLPE cone bottom tank rated to 1.9 specific gravity. The resin designation carries a question mark in our source data, so confirm HDLPE versus XLPE construction with us before committing the tank to chemical service, since crosslinked and linear polyethylene behave differently with certain oxidizers and solvents. Verify every selection against the OEM chemical-resistance chart, which is concentration- and temperature-specific, and size your fittings and gaskets to the chemical, not just the tank. Based on the compatibility data for this tank, the following are commonly stored at the listed concentrations with the noted 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 (under 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). Click any chemical in our Chemical Compatibility Database for concentration-specific detail, including pages for Sulfuric Acid, Sodium Hypochlorite, Hydrochloric Acid, and DEF.
The mistake to avoid
The most common error on a 1.9 SG cone bottom tank is matching the gasket to the fitting instead of to the chemical. Notice the pattern above: oxidizers and strong acids such as sulfuric, phosphoric, hydrofluoric, hydrogen peroxide, peracetic acid, and sodium hypochlorite call for Viton or Aflas gaskets, while salts and glycols run on EPDM. Install an EPDM gasket on a sodium hypochlorite line and it will degrade fast. Before you buy, confirm three things that depend on unresolved or gasket-sensitive data: (1) HDLPE versus XLPE resin for your chemical, (2) sodium hypochlorite under 16.5% must run Viton, not EPDM, and (3) sulfuric acid at 98% requires CPVC fittings, not standard PVC. Lay out your top fittings deliberately so vent, fill, level, and drain don't conflict; the Tank Top Fitting Placement Strategy guide walks through it, and the tank label and signage compliance guide covers NFPA 704 and GHS placarding. For continuous chemical service, choose a level gauge suited to the medium using our Tank Level Gauge Selection guide.
One freight note before you commit: this Enduraplas cone bottom tank ships LTL from a single plant in Neche, North Dakota, so for sites in the South and Southwest the freight will be a real number worth pricing first. Get your ZIP-specific quote with our Freight Cost Estimator or call 866-418-1777 to confirm fittings, stand pairing, and delivery for your site.
