The Norwesco 1610 Gallon Horizontal Elliptical Leg Tank (N-42320) is a black polyethylene horizontal leg tank rated to 1.5 specific gravity, built for hauling liquid that doesn't ride along the highway in a standard upright. The elliptical cross-section sits low and wide on integrated legs, with a footprint of 69 inches by 140 inches and an overall height of 63 inches, and it includes a bottom drain so the tank empties cleanly. At 1610 gallons it carries 13,427 pounds of water when full, and the 1.5 SG rating means it is engineered to handle up to 20,141 pounds of contents at that density. In practical terms, 1.5 SG covers any product up to roughly 12.5 pounds per gallon; water is 8.34 pounds per gallon, so you have real density headroom for most ag liquids but not for the 1.9-SG chemicals listed further down.
Will it work for your job?
Use the loaded-weight numbers to size your trailer or skid before you order. A full water load is 13,427 pounds; at the maximum rated 1.5 SG it climbs to 20,141 pounds, so confirm your axle rating, frame, and tie-downs against the heavier figure if you plan to haul a dense product, not just water. The 140-inch length and 69-inch width define the deck space you need, and the 63-inch height matters for clearance and center of gravity once it's mounted. Because this is a haul tank, DOT roadability is its own question: read our explainer on Norwesco applicator and leg tanks for fertilizer and the 49 CFR 173.5 agricultural exemption before you put it on the road. Review the technical drawing on this page for fitting locations and the bottom-drain position, and run your numbers through the Tank Sizing Calculator and Tank Sizing Guide if you're matching this tank to a specific load or trailer.
Chemical compatibility
Confirm whether your tank is HDLPE or XLPE (crosslinked) before putting it into chemical service, since resin type changes what it will hold. At the 1.5 SG rating, the chemical-resistance chart supports the following at the concentrations shown: Acetic Acid at 60%, Aluminum Sulfate at 50%, Calcium Chloride at 40%, DEF at 32.5%, Ferrous Sulfate at 20%, Magnesium Chloride at 30%, Sodium Carbonate at 30%, Urea Solution at 50%, and Ozonated Water up to 10 PPM. Every chemical this tank handles at 1.5 SG runs on EPDM gaskets with PVC or PP fittings, except DEF, which calls for 316SS fittings (still EPDM gaskets) — one clean procurement spec instead of nine line-items to cross-read. Chemical resistance is concentration- and temperature-specific, so check each against the OEM chart and our chemical compatibility reference before committing. Ozonated water has no dedicated page yet; call 866-418-1777 to confirm contact time and concentration limits before ordering.
Chemicals that need a higher-SG tank
Some products are too dense for a 1.5 SG tank and require the 1.9 SG version instead. Don't put these 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. Several of these also call for Viton or Aflas gaskets rather than EPDM, so match the gasket to the product. Picking the 1.5 SG tank for a 1.9 SG product is the most common and most expensive mistake on a tank like this — if you're hauling any of these, you need the 1.9 SG version, so call 866-418-1777 and we'll match you to the right Norwesco model.
Freight
This tank ships LTL freight, quoted live to your ZIP from the nearest Norwesco plant among St. Bonifacius, MN, Tooele, UT, and Washington Court House, OH. Get an exact number with our Freight Cost Estimator, or call 866-418-1777 and we'll quote it and confirm fitting and bottom-drain details for your application. If you're blending fertilizer in this tank, our guide on fertilizer-blend tank stratification covers the mixing protocols that keep a dense load from salting out before it reaches the spreader.
