The Norwesco 200 Gallon Cone Bottom Tank (N-41476) is a polyethylene cone-bottom tank built for full-drain batching and chemical service where the contents need to empty completely without manual scraping. It stands 55 inches tall on a 36-inch diameter footprint, holds 200 gallons, and carries a 1.5 specific gravity rating, meaning it is engineered to handle solutions up to 1.5 times the weight of water. Plain water fills it to about 1,668 lb, and at its full 1.5 SG rating the contents can reach roughly 2,502 lb, so the stand and slab under it must be sized for that loaded weight, not just the gallon count.
Will this cone bottom tank work for your application?
The 55-inch height and compact 36-inch diameter make this a practical footprint for indoor batch rooms, day tanks, and dosing skids where floor space is tight but you still want a true cone for complete drain-down. Because the cone discharges from the bottom point, outlet geometry matters: read the cone-bottom outlet sizing guide before specifying a valve so you choose a bridge-free outlet for your solids load. Request the technical drawing for this tank to confirm the exact outlet and penetration layout, and plan your top connections using the top fitting placement strategy so your vent, fill, and level connections do not conflict. If you are weighing this 200-gallon size against another capacity, the Tank Sizing Calculator and Tank Sizing Guide will check your batch volume and refill cadence against the loaded weight.
Chemical compatibility
This is a polyethylene tank with a 1.5 specific gravity rating. The resin type is not confirmed, so verify whether this tank is HDLPE or XLPE against the OEM spec before placing it in chemical service: crosslinked and linear polyethylene differ in chemical resistance, and on oxidizers and several acids that difference decides the verdict. The materials named below are recommended trim (fittings and gaskets) for each chemical, not hardware shipped on the tank. At the 1.5 SG rating, the following are within range, paired with the fitting and gasket materials that suit them: Acetic Acid at 60% (PP/PVC fittings, EPDM gaskets), Aluminum Sulfate at 50% (PVC, EPDM), Calcium Chloride at 40% (PVC, EPDM), DEF at 32.5% (316SS, EPDM), Ferrous Sulfate at 20% (PVC, EPDM), Magnesium Chloride at 30% (PVC, EPDM), Sodium Carbonate at 30% (PVC, EPDM), and Urea Solution at 50% (PP/PVC, EPDM). Ozonated water up to 10 PPM (PVC, EPDM) is also within range, though it has no dedicated detail page yet, so confirm your ozone PPM and contact time with us at 866-418-1777. Always check the OEM chemical-resistance chart for your specific concentration and operating temperature, since both shift the rating.
Chemicals that need a higher-SG tank
Several common chemicals require a heavier 1.9 specific gravity tank rather than this 1.5 SG model, so do not store them in this tank: Ethylene Glycol, Ferric Chloride, Ferric Sulfate, Hydrochloric Acid, Hydrofluoric Acid, Hydrofluosilicic Acid, Hydrogen Peroxide, Peracetic Acid, Phosphoric Acid, Polyaluminum Chloride, Potassium Carbonate, Potassium Hydroxide, Propylene Glycol, Sodium Bisulfate, Sodium Bisulfite, Sodium Hypochlorite, Sodium Thiosulfate, Sulfuric Acid, and Zinc Orthophosphate. If your service involves any of these, call 866-418-1777 and we will spec the 1.9 SG cone-bottom equivalent for you. Sizing the SG rating to the densest chemical you will ever run is the single most common mistake on cone-bottom chemical tanks. Browse the full Chemical Compatibility Database to match fitting and gasket materials, and note that aggressive oxidizers like sodium hypochlorite and the strong acids call for Viton gaskets rather than EPDM. A level gauge suited to chemical service and proper hazard labeling round out a safe chemical install.
This tank ships LTL freight from Burnet, TX, quoted live to your ZIP code. Get an exact number with the Freight Cost Estimator or call us at 866-418-1777 to talk through your cone-bottom setup, stand, and fitting plan. We will help you confirm the resin type, SG rating, outlet sizing, and gasket selection before you order.
