The Snyder Industries 13000 Gallon 30 Degree Cone Bottom Tank (SKU SII-7490100N43) is a white vessel built from High Density Linear Polyethylene and rated to a 1.9 specific gravity - the highest wall rating Snyder offers in this configuration. The 30-degree cone bottom empties under gravity with minimal product retention, which is why operators running aluminum sulfate, ferric chloride, and sodium hypochlorite reach for this shape over a flat-bottom tank. At 238 inches tall and 142 inches in diameter (142 x 142 inch footprint), it is a large-scale storage tank for water treatment, chemical batching, bulk dosing, and bulk DEF and glycol storage - the kind of capacity that lands it under searches for cone bottom tank, cone tank, and Snyder cone configurations.
Will it work for your application
The 1.9 SG rating is the number that matters here. It means the tank wall is engineered to hold contents up to 1.9 times the weight of water, so dense chemicals like sulfuric acid and ferric sulfate are within structural range - and because 1.9 is the ceiling for this family, there is no higher-SG version to go hunting for. Filled with water alone the tank carries 108,420 lb of contents; at its maximum rated 1.9 SG it is built to hold up to 205,998 lb of contents. Plan your foundation, ringwall, and cone support stand accordingly - a tank this size sets on an engineered base, not bare ground. Fittings shown on the technical drawing on this page include a flange, an 18-inch PE threaded and vented fitting that serves as the fill and vent path, a manway with 15-inch access for interior inspection and cleaning, and a 12-inch x 13-inch fitting. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm the cone height and total stand height fit your building before you order.
Chemical compatibility
This is an HDLPE tank rated to 1.9 specific gravity, which puts a wide range of treatment and industrial chemicals in play. Always match the wetted fitting and gasket materials to the chemical, and verify every selection against the manufacturer's chemical-resistance chart, which is concentration- and temperature-specific. Confirmed compatible chemicals from our chemical compatibility data, with the recommended fitting and gasket materials, include:
- Acetic Acid (60%) - PP/PVC fittings, EPDM gaskets - details
- Aluminum Sulfate (50%) - PVC fittings, EPDM gaskets - details
- Calcium Chloride (40%) - PVC fittings, EPDM gaskets - details
- DEF (32.5%) - 316SS fittings, EPDM gaskets - details
- Ethylene Glycol (100%) - PVC fittings, EPDM gaskets - details
- Ferric Chloride (50%) - PVC fittings, EPDM gaskets - details
- Ferric Sulfate (60%) - PVC fittings, EPDM gaskets - details
- Ferrous Sulfate (20%) - PVC fittings, EPDM gaskets - details
- Hydrochloric Acid (37%) - PVC fittings, Viton gaskets - details
- Hydrofluoric Acid (48%) - PP/PVC fittings, Viton gaskets - details
- Hydrofluosilicic Acid (26%) - PP/PVC fittings, Viton gaskets - details
- Hydrogen Peroxide (50%) - PVC fittings, Viton gaskets - details
- Magnesium Chloride (30%) - PVC fittings, EPDM gaskets - details
- Peracetic Acid (30%) - 316SS fittings, Aflas gaskets - details
- Phosphoric Acid (85%) - PVC fittings, Viton gaskets - details
- Polyaluminum Chloride - PVC fittings, EPDM gaskets - details
- Potassium Carbonate (50%) - PVC fittings, EPDM gaskets - details
- Potassium Hydroxide (Saturated) - PVC fittings, EPDM gaskets - details
- Propylene Glycol - PP/316SS fittings, EPDM gaskets - details
- Sodium Bisulfate - PVC/PP fittings, EPDM gaskets - details
- Sodium Bisulfite - PVC/PP fittings, EPDM gaskets - details
- Sodium Carbonate (30%) - PVC fittings, EPDM gaskets - details
- Sodium Hypochlorite (<16.5%) - PVC fittings, Viton gaskets - details
- Sodium Thiosulfate (40%) - PVC fittings, EPDM gaskets - details
- Sulfuric Acid (98%) - CPVC fittings, Viton gaskets - details
- Urea Solution (50%) - PP/PVC fittings, EPDM gaskets - details
- Zinc Orthophosphate - PP/316SS fittings, EPDM gaskets - details
- Ozonated Water (up to 10 PPM) - PVC fittings, EPDM gaskets
Note the fitting material that changes with the chemical: chlorine-bearing and oxidizing services like sodium hypochlorite, hydrogen peroxide, and sulfuric acid call for Viton or CPVC at the wetted points, while DEF and peracetic acid call for 316 stainless. Picking EPDM where Viton is required is the most common and most expensive mistake on a tank this size. Cross-check your exact chemical, concentration, and temperature in the Chemical Compatibility Database before specifying fittings.
Freight and ordering
This tank ships LTL freight from the Snyder plant in Lincoln, NE, quoted live to your ZIP code - it carries 108,420 lb of water when full and up to 205,998 lb of contents at the 1.9 SG ceiling, and at 238 inches tall it requires flatbed handling and offload equipment on your end, so confirm site access before booking. Get an estimate with the Freight Cost Estimator, and if you are weighing cone angles or comparing this to a Snyder Captor containment setup, the cone bottom angle selection guide and the Snyder Captor containment comparison are worth a read. Questions on fittings, SG selection, or a freight quote? Call 866-418-1777 and we will spec it with you.
