The Enduraplas 1200 Gallon Green Cone Bottom Tank (SKU THC01200G) is a polyethylene cone bottom tank built for full-drain bulk chemical service. It holds 1,200 gallons in a 90 in x 90 in footprint and stands 73 in tall, and its 1.9 specific gravity rating is what separates it from the standard 1.5 SG cone tanks most operators reach for first. That higher rating is the whole point: this is the high-density unit that stores process chemistries a 1.5 SG cone tank is not rated to carry.
Will this cone bottom tank handle my contents?
The cone geometry drains to a single low point, so solids, slurries, and settling chemistries clear out instead of pooling on a flat floor. Sizing matters more than usual on a cone tank because it ships and stands empty until you set it on a stand. Filled with water this tank carries 10,008 lb, and at its 1.9 SG rating it is engineered for a maximum contents weight of 19,015 lb. One caveat that protects you: that 19,015 lb ceiling assumes contents at the full 1.9 SG, so verify your chemical's actual specific gravity at concentration before you load it, and never exceed the rating. Run those numbers through the Tank Sizing Calculator and the Tank Sizing Guide, and confirm your support against the Cone Bottom Tank Stand Compatibility Matrix before you order steel.
Chemical compatibility
This tank is molded from polyethylene with a 1.9 specific gravity rating. Confirm the exact resin grade of your unit - HDLPE versus XLPE - before committing it to chemical service, because that choice drives long-term resistance. For the densest of the chemistries below, such as Sulfuric Acid at 98%, Ferric Chloride at 50%, and Phosphoric Acid at 85%, the 1.9 SG rating is the reason this tank qualifies where a 1.5 SG cone tank does not. Always size fittings and gaskets to the chemical, not just the tank, and verify every selection against the OEM chemical-resistance chart at your specific concentration and temperature. The following chemicals are within this tank's rating per the pack data:
- 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 below 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
The gasket call changes with the chemical, and getting it wrong is the single most common mistake on a tank like this - operators match the resin to the chemical, then reuse the wrong elastomer in the fittings and the seal fails long before the tank does. The pack data groups cleanly:
- EPDM - the salts, glycols, carbonates, DEF, and urea solution
- Viton - the oxidizers and strong acids: hydrochloric, sulfuric, hydrofluoric, hydrofluosilicic, hydrogen peroxide, sodium hypochlorite, and phosphoric
- Aflas - peracetic acid
- 316SS metal trim - DEF and peracetic acid
Cross-check every line against our Chemical Compatibility Database before you buy - the 28 chemistries above are a starting set that still need confirmation at your exact concentration and temperature, and the database is where you verify each fitting and gasket pairing. Lay out your top penetrations using the tank-top fitting placement strategy guide so fill, vent, level, and drain do not interfere.
Instrumentation and labeling
A bulk chemical tank rarely runs blind. For level monitoring on aggressive or foaming media, weigh the trade-offs in our tank level gauge selection guide, and before the tank goes into service, get the placarding right with our tank label and signage compliance guide covering NFPA 704, GHS, DOT, and OSHA HazCom.
Freight
This cone bottom tank ships LTL freight from the Enduraplas plant in Neche, ND, quoted live to your ZIP code. It ships without pre-installed fittings, so we confirm bulkhead, vent, and outlet sizing with you against your chemical before the order goes out. Get a freight number in seconds with the Freight Cost Estimator, or call us at 866-418-1777 and we will quote it for you and lock down stand and fitting options for your application before you commit.
