Enduraplas 7000 Gallon 15 Degree Plastic Cone Bottom Tank with Stand

The Enduraplas 7000 Gallon 15 Degree Cone Bottom Tank with Stand is a closed-top polyethylene tank built for full-drain chemical and process service where you need the contents to empty completely through the cone. It holds 7,000 gallons, weighs 1,600 lb empty, and is rated to a 1.9 specific gravity - the high SG rating that lets it carry dense chemistry most poly tanks can't. It stands 150" tall on its metal stand with a 145" x 144" footprint, a 3" outlet at the cone tip, and a 16" lid up top. If you searched "7000 gallon tank," "cone bottom," or "Enduraplas tank" and need a stand-mounted cone that drains clean, this is the size.

Will it work for your application?

Match the tank to what you're storing by weight and specific gravity, not just gallons. Full of water this tank carries 58,380 lb of contents; at its 1.9 SG rating it is engineered to hold up to 110,922 lb of chemical - so heavy solutions like sulfuric acid or ferric chloride stay within the tank's structural rating. The 15-degree cone and 3" bottom outlet are what make it a process tank rather than a storage drum: mixed batches, settling solids, and full gravity discharge all rely on that slope. The 3" cone outlet and 16" lid are the ports; the chemical-specific fitting and gasket the resistance chart calls for are specified per service, not pre-installed. Confirm your fill weight against the 1.9 rating with the Tank Sizing Calculator and the Tank Sizing Guide before you order, and verify the metal stand pad and anchoring can carry roughly 112,500 lb loaded (110,922 lb of contents at 1.9 SG plus the 1,600 lb tank). See the technical drawing on this page for cone geometry, stand height, and fitting placement.

Chemical compatibility

This tank is polyethylene rated to 1.9 specific gravity. The resin is listed as HDLPE but not fully confirmed - confirm HDLPE vs XLPE before putting it into chemical service, since crosslinked and linear polyethylene differ in stress-crack and oxidizer resistance. Compatibility below is drawn from the Snyder Industries OEM chemical resistance chart and is concentration- and temperature-specific. No maximum service temperature is published for this SKU, so confirm your process and ambient temperature with the factory along with your exact chemical, concentration, and fitting and gasket materials before committing.

Chemicals this tank's 1.9 SG rating can carry (with the fitting and gasket the chart specifies) include Ethylene Glycol (100%, PVC fittings / EPDM gaskets), 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), 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 and Sodium Bisulfite (PVC/PP/EPDM), Sodium Hypochlorite (under 16.5%, PVC/Viton), Sodium Thiosulfate (40%, PVC/EPDM), Sulfuric Acid (98%, CPVC/Viton), Zinc Orthophosphate (PP/316SS/EPDM), and Ozonated Water (up to 10 PPM, PVC/EPDM). Lower-density chemistries the chart also clears - Acetic Acid (60%), Aluminum Sulfate (50%), Calcium Chloride (40%), DEF (32.5%, 316SS/EPDM), Ferrous Sulfate (20%), Magnesium Chloride (30%), Sodium Carbonate (30%), and Urea Solution (50%) - are all within this tank's rating as well. Cross-check every chemical against the full Chemical Compatibility Database, since the right gasket (EPDM vs Viton vs Aflas) changes with the chemical.

The mistake to avoid

The costly error on a cone-bottom chem tank is under-specifying the fittings and gasket while assuming the poly wall alone makes it compatible. The chart is explicit that Sulfuric Acid at 98% needs CPVC fittings and Viton gaskets, DEF needs 316 stainless, and oxidizers like sodium hypochlorite and hydrogen peroxide need Viton - an EPDM gasket in those services fails fast. Peracetic Acid is the true outlier: the chart calls for 316SS fittings and an Aflas gasket, a specialty seal most shops don't stock, so don't default it to Viton. The second mistake is the resin question: do not fill this tank with an aggressive oxidizer until you have confirmed HDLPE vs XLPE for your specific chemical. Get those right and the 1.9 SG rating does the rest.

This tank ships LTL freight from the nearer Enduraplas plant - Converse, TX or Neche, ND - quoted live to your ZIP; on a 7,000-gallon cone this size, which origin is closer drives the freight number. Get a real figure with the Freight Cost Estimator, or call 866-418-1777 and we'll confirm fittings, stand, and delivery for your site. New to cone-bottom-with-stand setups? Our cone-bottom buyer's guides walk through stand loads, drain angles, and fitting choices step by step.