The Enduraplas 8000 Gallon 15 Degree Plastic Cone Bottom Tank with Stand (SKU EP-THC08000K-WH) is a closed-top cone bottom vessel built for full-drain batching, chemical mixing, and storage where you need the tank to empty toward a single low point. Molded in white polyethylene with a 1.9 specific gravity rating, it carries an 8000 gallon capacity, an empty weight of 2,100 lb, and rides on a metal stand so the 15-degree cone can gravity-feed a pump or downstream process. The tank stands 158" tall on a 144" diameter footprint, with a 16" lid up top and a 3" outlet at the cone tip.
Will it work for your job
The 1.9 SG rating is the number that matters on a cone bottom this size. Water fills the 8000 gallons at roughly 66,720 lb, and the tank is rated to carry contents up to about 126,768 lb - which is where the 1.9 SG headroom comes in for heavier-than-water chemistry. Confirm your product's specific gravity against that 1.9 rating before you commit, and confirm the metal stand's rated load capacity matches your actual product weight - the pack does not publish a stand rating, so call 866-418-1777 to verify it before you assume you can run all the way to 1.9. One expectation to set: 15 degrees is a shallower cone than the 20- and 30-degree tanks in our buyer's guides, so residual heel and settling behavior differ from those steeper full-drain cones - plan for it if your product drops out or cakes. If you're sizing between capacities, run the numbers with our Tank Sizing Calculator and Tank Sizing Guide. For how cone-and-stand tanks behave in the field, our cone bottom guides - including the 550 gallon 20-degree cone bottom guide and the 300 gallon 30-degree guide - walk through drain angle, stand setup, and fitting choices.
Chemical compatibility
This tank is rated at 1.9 specific gravity in polyethylene. The resin is recorded as HDLPE with a "?" flag, so confirm HDLPE vs XLPE with us before putting it into chemical service - the two crosslink differently and it changes what you can store. Compatibility below is drawn from the Snyder Industries OEM chemical-resistance chart and is concentration- and temperature-specific; verify your exact chemical, concentration, temperature, and fitting plus gasket material before ordering.
Chemicals this 1.9 SG tank supports (with the fitting and gasket materials the chart calls for): Ethylene Glycol at 100% (PVC / EPDM), Ferric Chloride at 50% (PVC / EPDM), Ferric Sulfate at 60% (PVC / EPDM), Hydrochloric Acid at 37% (PVC / Viton), Hydrofluoric Acid at 48% (PP/PVC / Viton), Hydrofluosilicic Acid at 26% (PP/PVC / Viton), Hydrogen Peroxide at 50% (PVC / Viton), Peracetic Acid at 30% (316SS / Aflas), Phosphoric Acid at 85% (PVC / Viton), Polyaluminum Chloride (PVC / EPDM), Potassium Carbonate at 50% (PVC / EPDM), Potassium Hydroxide (saturated, PVC / EPDM), Propylene Glycol (PP/316SS / EPDM), Sodium Bisulfate (PVC/PP / EPDM), Sodium Bisulfite (PVC/PP / EPDM), Sodium Hypochlorite under 16.5% (PVC / Viton), Sodium Thiosulfate at 40% (PVC / EPDM), Sulfuric Acid at 98% (CPVC / Viton), and Zinc Orthophosphate (PP/316SS / EPDM). Lower-demand chemistries like Acetic Acid (60%), Aluminum Sulfate (50%), Calcium Chloride (40%), DEF (32.5%), Ferrous Sulfate (20%), Magnesium Chloride (30%), Sodium Carbonate (30%), Urea Solution (50%), and Ozonated Water (up to 10 PPM) are within range as well. See the full Chemical Compatibility Database, and note the chart is concentration- and temperature-specific - match the gasket (EPDM, Viton, or Aflas) to your exact service.
The mistake to avoid
On a tank this large, the two things that bite people are the resin flag and the fitting hardware. Do not assume crosslinked polyethylene - confirm HDLPE vs XLPE for your chemical before you order, because DEF and Peracetic Acid, for example, call for very different hardware (316SS) than the acids that run on PVC or CPVC. And know that this tank ships with a 3" outlet location and a 16" lid, but fittings and gaskets are NOT included - the 3" outlet is a bulkhead position, not a chemical-ready assembly. Spec your outlet plumbing and gasket to the chart (PVC, CPVC, PP, or 316SS with EPDM, Viton, or Aflas), not to whatever is on the shelf.
This tank ships LTL, quoted live to your ZIP from the Enduraplas plant in Converse, TX. Get a freight number in seconds with the Freight Cost Estimator, or call 866-418-1777 to confirm resin, stand rating, fittings, and freight before you buy. See the technical drawing on this page for cone angle, stand height, and outlet placement.
