The Enduraplas 8000 Gallon Black Cone Bottom Tank is a full-drain vessel for bulk chemical storage, metering, and dosing - including diesel exhaust fluid (DEF) at 32.5% - rated to a 1.9 specific gravity so it carries dense liquids that would overstress a lighter-rated tank. The black polyethylene wall blocks light to limit UV exposure, and the cone bottom drains contents to the center outlet for clean batching and tank turnover. It stands 158 inches tall on a 144 x 144 inch footprint, so plan your stand height and overhead clearance for fill and venting before it arrives.
Will this tank work for your application?
Sizing is the part buyers get wrong, so work from weight, not just gallons. At a full 8,000 gallons of water this tank holds 66,720 lb of contents, and at its 1.9 SG ceiling it can carry up to 126,768 lb of liquid. That loaded weight - not the empty tank - is what your cone-bottom stand, anchor pattern, and slab have to support. Confirm the stand is rated for your specific chemical's weight using the cone bottom tank stand compatibility matrix, and run your liquid through the Tank Sizing Calculator and Tank Sizing Guide so the stand and footprint match the real loaded condition. Because every fitting on a cone-bottom tank competes for the same crowded top and the single bottom drain, lay out your vent, fill, level, and drain penetrations deliberately - our top fitting placement strategy guide walks through avoiding cross-contamination and maintenance conflicts. See the technical drawing on this page for the molded fitting and port locations so you verify where ports land rather than guessing.
Chemical compatibility
This is a polyethylene tank rated to 1.9 specific gravity. The exact resin grade is unconfirmed - confirm HDLPE versus XLPE with our team at 866-418-1777 before committing it to chemical service. Compatibility is concentration- and temperature-specific; check the OEM chemical-resistance chart for your exact conditions and match fitting and gasket materials to the chemical, not just the tank.
Common chemicals compatible with this 1.9 SG tank, with the recommended fitting and gasket materials, include:
- 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
For chlorine and sulfuric service note the move to Viton or CPVC, and verify all selections against the full Chemical Compatibility Database at your concentration and temperature. For accurate level readings on a tank this tall, see our guide on tank level gauge selection for chemical service, and on labeling your installation correctly, our tank label and signage compliance guide.
The mistake to avoid
The costliest error on a 1.9 SG cone tank is matching the wrong sealing material to the chemical. Aggressive oxidizers and acids - sodium hypochlorite (keep it under 16.5%), hydrogen peroxide, hydrochloric, phosphoric, and sulfuric acid here - call for Viton or CPVC rather than the EPDM used for salts and glycols, and DEF and peracetic acid require 316SS wetted hardware. Spec the gasket and fitting to the chemical and concentration before you order, not after a seal fails in the field.
This tank ships LTL freight from the nearest Enduraplas plant - Converse, TX or Neche, ND - quoted live to your ZIP, so your location sets which plant quotes the lower haul: Plains and upper-Midwest destinations generally ship from Neche, ND, while southern and Gulf destinations ship from Converse, TX. Get your freight quote with the Freight Cost Estimator, see the technical drawing on this page for fitting and dimensional detail, or call 866-418-1777 to confirm resin, fittings, and stand sizing before you buy.
