The Norwesco 300 Gallon 15 Degree Cone Bottom Tank (SKU N-41484) is built for full-discharge chemical handling where the tank needs to empty completely and leave nothing settling on the floor. Molded in white polyethylene and rated to a 1.5 specific gravity, this 300 gallon cone bottom stands 82 inches tall on a 36 x 36 inch footprint, with the shallow 15-degree cone designed to drain low-to-moderate viscosity solutions while keeping overall height manageable for tighter ceiling spaces. Among the cone bottom angles, 15 degrees is the most space-efficient; if you are weighing it against steeper drain angles, the Norwesco cone bottom buyer's guide on 15 vs 30 vs 45 degree selection walks through the trade-offs.
Will it work for your application
This is a cone bottom tank, so it requires a stand or structural support to hold the cone clear of the ground - it does not free-stand like a flat-bottom vertical. Size around weight, not just gallons: filled with water the tank carries roughly 2,502 pounds, and at its full 1.5 specific gravity rating it can hold up to 3,753 pounds of contents. Your stand, slab, and any anchoring must be rated for that loaded weight. Run the numbers with the Tank Sizing Calculator and the Tank Sizing Guide to confirm the footprint and loaded weight fit your pad before you buy. One gap to close before ordering: the factory fitting configuration is not specified in this listing, so confirm the molded bulkhead and outlet sizes from the technical drawing on this page or by phone - you need those before you can match the right fitting and gasket materials to your chemical.
Chemical compatibility
This tank is white HDLPE polyethylene rated to 1.5 specific gravity. The resin field on this record carries a verification flag, so confirm HDLPE versus XLPE construction with us before placing it into chemical service - the two resins behave differently and the distinction can change what your chemical tolerates. The ratings below come from the OEM chemical-resistance chart, which is concentration- and temperature-specific, and they assume the confirmed resin; treat them as subject to that resin check. At its native 1.5 SG, this tank is rated for the following at the listed concentrations, each paired with a required fitting and gasket material:
- DEF (diesel exhaust fluid) (32.5%) - 316SS fittings, EPDM gaskets
- Urea Solution (50%) - PP/PVC fittings, EPDM gaskets
- Acetic Acid (60%) - PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate (50%) - PVC fittings, EPDM gaskets
- Calcium Chloride (40%) - PVC fittings, EPDM gaskets
- Ferrous Sulfate (20%) - PVC fittings, EPDM gaskets
- Magnesium Chloride (30%) - PVC fittings, EPDM gaskets
- Sodium Carbonate (30%) - PVC fittings, EPDM gaskets
- Ozonated Water (up to 10 PPM) - PVC fittings, EPDM gaskets
This is a strong choice for DEF and urea-solution service, both of which sit well within the 1.5 SG rating - note that DEF calls for 316SS fittings rather than the PVC default most of the other chemicals use, so order the correct fitting and gasket kit for your contents. EPDM is the default gasket across most of these chemicals, but matching fitting material (PVC, PP, or 316SS) to the chemical is not optional.
The mistake to avoid
The error that bites buyers on this model is matching it to a chemical that needs a heavier wall. Several common process chemicals - including Sulfuric Acid, Hydrochloric Acid, Sodium Hypochlorite, Hydrogen Peroxide, Phosphoric Acid, Ferric Chloride, Ethylene Glycol, and Potassium Hydroxide - require a higher 1.9 specific gravity tank, not this 1.5 SG model. Many of those also move off EPDM: Sulfuric Acid, Hydrochloric Acid, Sodium Hypochlorite, Hydrogen Peroxide, and Phosphoric Acid call for Viton gaskets, and Peracetic Acid requires Aflas with 316SS fittings. If your service involves any of those, step up to the 1.9 SG version rather than forcing this tank. Always verify your exact chemical, concentration, and temperature in our Chemical Compatibility Database before committing.
This 300 gallon cone bottom tank ships LTL freight from the Norwesco plant in Burnet, TX, with the rate quoted live to your ZIP - get your number from the Freight Cost Estimator or call us at 866-418-1777. For a deeper walkthrough of cone angles and stand options, see our 300 Gallon 15 Degree Cone Bottom Tank buyer's guide.
3 Year Warranty
