The Enduraplas 8000 Gallon Green Cone Bottom Tank is a full-drain polyethylene vessel built for bulk chemical service, rated to a 1.9 specific gravity so it carries dense liquids that would overstress a standard 1.5 SG tank. It stands 158 inches tall on a 144 x 144 inch footprint, and the cone bottom drains completely with no settled heel left behind. With water it holds 8,000 gallons at roughly 66,720 pounds full; at its maximum 1.9 SG rating the contents alone reach about 126,768 pounds. That is nearly 60,000 pounds heavier than the water-full weight, and it is the number your steel cone stand, anchors, and concrete pad must be engineered to.
Will it work for your application
This is a cone bottom tank, so it sits in a matching steel stand sized for an 8,000 gallon cone - the tank is not free-standing. Spec the stand, anchors, and pad to the 126,768 pound maximum rated load, not to gallons or water weight. Confirm your stand height and ring diameter against the tank's dimensions before you order, and check the technical drawing on this page for fitting locations and the cone angle. At a 1.9 SG rating this is the maximum-density tank offered in this line, so there is no heavier-duty step-up to chase for dense chemical duty - you are already buying the strongest option. Our Tank Sizing Calculator and Tank Sizing Guide help you reconcile capacity, weight, and footprint, and the Cone Bottom Tank Stand Compatibility Matrix covers Enduraplas stand pairing. For top connections, the top fitting placement guide and level gauge selection guide walk through vent, fill, and gauge layout.
Chemical compatibility
This tank is molded polyethylene rated to a 1.9 specific gravity. The costly mistake here is pairing the right tank with the wrong fitting or gasket: EPDM is the default elastomer across most of this list, but the strong acids and oxidizers break that default. Hydrochloric (37%), Hydrofluoric (48%), Hydrofluosilicic, Hydrogen Peroxide (50%), Phosphoric (85%), and Sodium Hypochlorite (<16.5%) all require Viton gaskets; Sulfuric Acid (98%) needs CPVC fittings with Viton, not the PVC that covers most of the list; and Peracetic Acid (30%) is the lone pairing that demands 316SS fittings with Aflas. Note too that DEF (32.5%) takes 316SS fittings - not the cheap plastic most buyers assume for a mild fluid - while the 50% Urea Solution runs on PP/PVC. Do not assume one fitting kit covers everything. The following are compatible per the OEM chemical-resistance chart, which is concentration- and temperature-specific; verify your exact concentration and operating temperature against that chart for each chemical:
- Acetic Acid (60%) - PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate (50%) - PVC fittings, EPDM gaskets
- Calcium Chloride (40%) - PVC fittings, EPDM gaskets
- DEF (32.5%) - 316SS fittings, EPDM gaskets
- Ethylene Glycol (100%) - PVC fittings, EPDM gaskets
- Ferric Chloride (50%) - PVC fittings, EPDM gaskets
- Ferric Sulfate (60%) - PVC fittings, EPDM gaskets
- Ferrous Sulfate (20%) - PVC fittings, EPDM gaskets
- Hydrochloric Acid (37%) - PVC fittings, Viton gaskets
- Hydrofluoric Acid (48%) - PP/PVC fittings, Viton gaskets
- Hydrofluosilicic Acid (26%) - PP/PVC fittings, Viton gaskets
- Hydrogen Peroxide (50%) - PVC fittings, Viton gaskets
- Magnesium Chloride (30%) - PVC fittings, EPDM gaskets
- Peracetic Acid (30%) - 316SS fittings, Aflas gaskets
- Phosphoric Acid (85%) - PVC fittings, Viton gaskets
- Polyaluminum Chloride - PVC fittings, EPDM gaskets
- Potassium Carbonate (50%) - PVC fittings, EPDM gaskets
- Potassium Hydroxide (saturated) - PVC fittings, EPDM gaskets
- Propylene Glycol - PP/316SS fittings, EPDM gaskets
- Sodium Bisulfate - PVC/PP fittings, EPDM gaskets
- Sodium Bisulfite - PVC/PP fittings, EPDM gaskets
- Sodium Carbonate (30%) - PVC fittings, EPDM gaskets
- Sodium Hypochlorite (<16.5%) - PVC fittings, Viton gaskets
- Sodium Thiosulfate (40%) - PVC fittings, EPDM gaskets
- Sulfuric Acid (98%) - CPVC fittings, Viton gaskets
- Urea Solution (50%) - PP/PVC fittings, EPDM gaskets
- Zinc Orthophosphate - PP/316SS fittings, EPDM gaskets
- Ozonated Water (up to 10 PPM) - PVC fittings, EPDM gaskets
Full chemical, concentration, and elastomer detail lives in our Chemical Compatibility Database. When in doubt on resin grade for a specific medium, route the question to the OEM resistance chart or our team rather than guessing - it is concentration- and temperature-specific.
Labeling and freight
Once filled, bulk polyethylene storage at this scale falls under hazard-communication rules; the tank label and signage compliance guide covers NFPA 704, GHS, and OSHA HazCom placement for an installed tank this size.
This tank ships LTL, quoted live to your ZIP, from the nearest of our two plants - Converse, TX or Neche, ND. Get a number for your delivery point with the Freight Cost Estimator, or call 866-418-1777 and we will pull the cone bottom tank freight quote and stand pairing with you. List price is shown before freight.
