The Enduraplas 1200 Gallon Green Cone Bottom Tank with Stand (SKU THC01200KG) is a full-drain vessel built for batching, dosing, and settling applications where you need every gallon to evacuate through the bottom. Molded from polyethylene in green, it carries a 1.9 specific gravity rating and ships as a 1200 gallon cone-bottom body seated on its matching stand. The empty tank weighs about 250 lb, stands 83" tall on a 90" diameter footprint, and comes fitted with a 3" PP female NPT bulkhead outlet at the cone tip and a 16" threaded vented manway up top. It is FDA Approved.
Will it hold your product
The 1.9 SG rating is the number that matters here. Filled with water this tank carries roughly 10,008 lb; at its maximum rated contents it is engineered for up to about 19,015 lb, which is what lets it hold liquids substantially denser than water. Match your fluid's specific gravity against that 1.9 ceiling before you buy. The 3" PP bulkhead at the cone apex gives you gravity discharge with no residual heel, and the 16" vented manway keeps the headspace from pulling a vacuum on drawdown. Because this is a cone-bottom-on-stand configuration, plan your plumbing and any valve, pump, or hose reel around the 83" overall height and the 90" diameter base. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm the 1200 gallon working volume fits your batch cycle.
Chemical compatibility
This is a polyethylene tank (resin listed as HDLPE?) rated to 1.9 specific gravity. Because the resin carries a question mark, confirm HDLPE versus XLPE with us before chemical service — that distinction changes what the strong oxidizers on this list do to the wall, so nail it down before ordering for sodium hypochlorite (bleach), hydrogen peroxide, or peracetic acid duty. Compatibility below is drawn from the Snyder Industries OEM chemical resistance chart and is concentration- and temperature-specific; always confirm your exact chemical, concentration, temperature, and the fitting and gasket materials before committing.
The 1.9 SG body suits, per the chart: Ethylene Glycol (100%, PVC fittings, EPDM gasket), Ferric Chloride (50%, PVC/EPDM), Ferric Sulfate (60%, PVC/EPDM), Hydrochloric Acid (37%, PVC/Viton), Hydrofluoric Acid (48%, PP/PVC/Viton), Hydrofluosilicic Acid (26%, PP/PVC/Viton), Hydrogen Peroxide (50%, PVC/Viton), 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 Hypochlorite (<16.5%, PVC/Viton), Sodium Thiosulfate (40%, PVC/EPDM), Sulfuric Acid (98%, CPVC/Viton), and Zinc Orthophosphate (PP/316SS/EPDM). Several of these — Ethylene Glycol, Ferric Chloride and Sulfate, Hydrochloric Acid, Hydrogen Peroxide, Phosphoric Acid, Sodium Hypochlorite, and Sulfuric Acid among them — sit right at the tank's 1.9 SG ceiling, meaning zero density margin. There is no denser-rated tank in this size and configuration, so verify your true solution SG and operating temperature before committing. Lower-SG-rated services the chart also clears on this tank include Acetic Acid (60%), Aluminum Sulfate (50%), Calcium Chloride (40%), DEF (32.5%, 316SS/EPDM), Ferrous Sulfate (20%), Magnesium Chloride (30%), Sodium Carbonate (30%), Urea Solution (50%, PP/PVC), and Ozonated Water (up to 10 PPM). Note the standard 3" PP bulkhead may need a different material than what ships: sodium hypochlorite and the strong acids want PVC or CPVC bodies with Viton gaskets, DEF wants 316SS, and urea wants PP or PVC. The correct-material bulkhead and gasket is a separately specified part, not included in the box — call 866-418-1777 to confirm the right fitting for your chemical. Check each chemical against our Chemical Compatibility Database, and see the individual pages for sulfuric acid, sodium hypochlorite, hydrochloric acid, ferric chloride, and DEF.
Stand and the mistake to avoid
A cone-bottom tank cannot stand on its own — it lives in its support structure, and the stand is what carries that near-19,000 lb loaded weight down to your slab. The single most common mistake is mismatching stand rating to fluid density: sizing the stand for water when you are actually running a 1.5 to 1.9 SG chemical overloads the frame. Confirm your loaded weight against the stand rating, and if you are choosing or replacing a stand, read our steel frame vs. polyethylene stand decision tree and the stand compatibility matrix for Norwesco, Snyder, and Enduraplas. See the technical drawing on this page for the outlet, manway, and stand geometry.
This 1200 gallon Enduraplas green cone bottom tank ships LTL freight from the nearest of our plants in Converse, TX or Neche, ND, quoted live to your ZIP. Get an exact number with the Freight Cost Estimator or call 866-418-1777 to confirm fittings, stand rating, and delivery.
