The Norwesco 300 Gallon 30 Degree Cone Bottom Tank (N-62346) is the closed-top, full-drain cone tank built for processes that have to empty completely between batches. This is the tank-only configuration with no fittings pre-installed, so you spec the bulkheads, valves, and vent to match your exact chemistry. Molded in white polyethylene rated to 1.5 specific gravity, it holds 300 gallons in a 48 x 48 in. footprint and stands 49 in. tall. The 30-degree cone is the middle option in Norwesco's line - steeper than the 15-degree for better solids drainage, but shorter overall than a 45-degree, which keeps the support-stand height (and your ladder reach) more manageable.
300 gal | 48 x 48 in. footprint | 49 in. tall | white PE | 1.5 SG
Will it work for your application
Run the numbers on weight before you build a stand. Filled with plain water this cone bottom tank carries about 2,502 lb; loaded to its full 1.5 SG rating it reaches roughly 3,753 lb of contents. Size your stand and slab for 3,753 lb (300 gal x 1.5 SG), not the 2,502 lb water weight - that heavier figure is what your cone stand, anchor points, and slab actually have to carry. Use the Tank Sizing Calculator and Tank Sizing Guide to confirm the cone tank and stand fit your headroom and discharge height. Because this is a closed-top cone tank, plan your fill, vent, and mixing access from above, and check the technical drawing on this page for the cone and outlet geometry. New to cone selection or torn between angles, start with the Norwesco Cone Bottom Tank Buyer's Guide, then the angle-specific walkthroughs for the 300 gallon 30-degree, 45-degree, and 15-degree versions.
Chemical compatibility
This tank is molded in polyethylene with a 1.5 specific gravity rating. The resin code is unconfirmed in our data (listed as HDLPE with a question mark), so confirm whether your unit is HDLPE or XLPE before committing it to chemical service - the two resins behave differently against certain chemistries. At 1.5 SG, this tank is suitable for the following chemicals at the listed concentrations, with the recommended fitting and gasket materials drawn from the OEM chemical-resistance chart (which is concentration- and temperature-specific - match your actual conditions):
- Acetic Acid at 60% - PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate at 50% - PVC fittings, EPDM gaskets
- Calcium Chloride at 40% - PVC fittings, EPDM gaskets
- DEF at 32.5% - 316SS fittings, EPDM gaskets
- Ferrous Sulfate at 20% - PVC fittings, EPDM gaskets
- Magnesium Chloride at 30% - PVC fittings, EPDM gaskets
- Sodium Carbonate at 30% - PVC fittings, EPDM gaskets
- Urea Solution at 50% - PP/PVC fittings, EPDM gaskets
- Ozonated Water up to 10 PPM - PVC fittings, EPDM gaskets
Note that the fitting material is not one-size-fits-all even within this compatible set: DEF calls for 316SS and Acetic Acid for PP/PVC, while the rest run PVC - so do not order a single PVC fitting kit and assume it covers everything. Several common process chemicals are NOT a match for this 1.5 SG tank and require a higher-rated 1.9 SG cone tank instead: 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. Running any of these? You need the 1.9 SG version of this cone tank - call 866-418-1777 to spec it. Several of these also call for Viton, CPVC, or Aflas gaskets in place of EPDM - check each chemical's page and our Chemical Compatibility Database before you order fittings.
The mistake to avoid
The most expensive error on a tank-only cone like this one is matching the chemical to the wrong specific-gravity rating. This is a 1.5 SG tank - dose it with a 1.9 SG-only chemical such as sulfuric acid or sodium hypochlorite and you are overloading the wall, not protecting it. Equally important: the fitting and gasket material must match the chemistry, not just the tank. EPDM works for the salts and urea above but fails against the oxidizers and strong acids, which need Viton, CPVC (as with sulfuric acid), or Aflas (as peracetic acid requires). Since this tank ships without fittings, you have full control here - use it. Confirm your resin (HDLPE vs XLPE), confirm your SG, then spec PVC, PP, CPVC, or 316SS with the correct gasket per the OEM chart and our chemical pages.
This cone bottom tank ships LTL freight, quoted live to your ZIP from the nearest Norwesco plant among Griffin, GA; Hanford, CA; Shawnee, OK; Sheldon, IA; St. Bonifacius, MN; Tooele, UT; and Washington Court House, OH. Get your freight cost to your ZIP with the Freight Cost Estimator, or call 866-418-1777 to confirm fitting recommendations, resin, and freight before you order.
