The Enduraplas 1200 Gallon Black Cone Bottom Tank (SKU THC01200B) is built for full-drain bulk chemical service, with a 1.9 specific gravity rating that puts it among the heaviest-duty cone-bottom polyethylene tanks for storing dense liquids. The fully sloped cone bottom empties without a sump or manual scraping, which is exactly what you want for coagulants, acids, and process chemicals that settle or need complete turnover between batches. It holds 1,200 gallons, stands 73 inches tall, and sits on a 90 x 90 inch footprint.
Will this cone bottom tank work for your job?
The 1.9 SG rating is the number that matters here. Filled with plain water this tank carries about 10,008 lb; rated to its full 1.9 specific gravity it is built to hold up to 19,015 lb of contents. That headroom is why a 1.9-rated cone tank is the right call for dense chemicals - aluminum sulfate, ferric chloride and sulfuric acid all weigh far more than water per gallon, and a tank rated only to 1.5 or 1.0 SG would be overstressed. Because the cone bottom requires elevation to drain, plan your stand and discharge piping before delivery; the Cone Bottom Tank Stand Compatibility Matrix covers stand fit for Enduraplas cone tanks, and the Tank Sizing Calculator and Tank Sizing Guide help confirm 1,200 gallons matches your throughput. No factory fittings are pre-specified for this SKU - fitting size and placement are configured to order, so confirm your outlet and discharge fitting size for cone-drain plumbing before you buy, and see the technical drawing on this page for cone geometry and fitting reference.
Chemical compatibility
This is a black polyethylene cone tank rated to 1.9 specific gravity. The resin is not confirmed by OEM data, so confirm HDLPE vs XLPE with us before committing to chemical service - for 1.9-SG service that distinction materially changes stress-crack resistance with aggressive chemicals. Compatibility below is drawn from the OEM chemical-resistance chart and is concentration- and temperature-specific; verify your exact concentration and operating temperature against that chart and our Chemical Compatibility Database before ordering. The single most common mistake here is matching the tank but mismatching the seal: fitting and gasket material is specific to each chemical, so read the pairing for yours below.
| Chemical | Conc. | Fitting | Gasket |
|---|---|---|---|
| Acetic Acid | 60% | PP/PVC | EPDM |
| 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 | <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 |
| Ozonated Water | up to 10 PPM | PVC | EPDM |
Three groups break from the common PVC/PP-with-EPDM pattern, and these are where seal mistakes happen: the strong acids and oxidizers - Hydrochloric Acid, Hydrofluoric Acid, Hydrofluosilicic Acid, Hydrogen Peroxide, Phosphoric Acid, Sodium Hypochlorite, and Sulfuric Acid (which also calls for CPVC fittings) - require Viton gaskets; DEF requires 316SS fittings with EPDM; and Peracetic Acid requires 316SS fittings with Aflas. Confirm fitting and gasket material per chemical before you plumb the tank.
Freight, fittings, and ordering
This 1,200 gallon cone tank ships by LTL freight from the Enduraplas plant in Neche, ND, quoted live to your ZIP - get your number from the Freight Cost Estimator or call 866-418-1777. Because fitting locations matter for both compatibility and your piping layout, plan them with the tank top fitting placement guide; for monitoring dense chemical levels see the level gauge selection guide, and for hazard labeling on bulk chemical storage see the tank label and signage compliance guide. Questions on the right cone bottom tank for your chemical and volume? Call 866-418-1777 and we'll spec it with you.
