The Norwesco 3250 Gallon HDPE Horizontal Leg Tank in black is a high-capacity elliptical leg tank built for hauling liquid fertilizer, water, and compatible chemicals on a transport skid or applicator trailer. Molded from high density linear polyethylene with a 1.9 specific gravity rating, it carries the heaviest commodity loads in the leg-tank class, while the carbon-black pigment shields the resin from UV degradation through the inhibition mechanism explained in our guide on HDPE tank color pigment chemistry. Its elliptical cross-section sits low and wide for a stable center of gravity in transit, measuring 152 inches long, 88 inches wide, and 82 inches tall on an 88.0 x 152.0 inch footprint.
Will it work for your load?
The 1.9 specific gravity rating is the number to check first. With 3,250 gallons of plain water this tank carries roughly 27,105 pounds, and it is rated to a maximum contents weight of 51,500 pounds, so it has real headroom for dense liquid fertilizer and the heavier chemicals below. That headroom is exactly why a leg tank is rated by specific gravity, not just gallons: a 1.9 SG liquid weighs nearly twice what water does, and pushing past 51,500 pounds is how legs and saddle supports get overstressed. Match your liquid's specific gravity against the rating, not just the gallon mark. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm your filled weight before you spec a trailer or cradle, and review the technical drawing on this page for fitting and outlet placement.
Chemical compatibility
This is an HDLPE tank with a 1.9 specific gravity rating, which is what lets it hold the dense acids and chlorides growers and water-treatment operators run. Compatibility always depends on concentration, temperature, and the fitting and gasket materials you specify, so confirm your service against the OEM chemical-resistance chart for the exact concentration and temperature you operate at. Compatible chemicals from the chart for this tank include acetic acid (60%, PP/PVC fittings, EPDM gaskets), aluminum sulfate (50%, PVC, EPDM), calcium chloride (40%, PVC, EPDM), DEF (32.5%, 316SS fittings, EPDM), ethylene glycol (100%, PVC, EPDM), ferric chloride (50%, PVC, EPDM), ferric sulfate (60%, PVC, EPDM), ferrous sulfate (20%, PVC, EPDM), hydrochloric acid (37%, PVC, Viton), hydrofluoric acid (48%, PP/PVC, Viton), hydrofluosilicic acid (26%, PP/PVC, Viton), hydrogen peroxide (50%, PVC, Viton), magnesium chloride (30%, PVC, EPDM), peracetic acid (30%, 316SS, Aflas), phosphoric acid (85%, PVC, Viton), polyaluminum chloride (PVC, EPDM), potassium carbonate (50%, PVC, EPDM), potassium hydroxide (saturated, PVC, EPDM), propylene glycol (PP/316SS, EPDM), sodium bisulfate (PVC/PP, EPDM), sodium bisulfite (PVC/PP, EPDM), sodium carbonate (30%, PVC, EPDM), sodium hypochlorite (under 16.5%, PVC, Viton), sodium thiosulfate (40%, PVC, EPDM), sulfuric acid (98%, CPVC, Viton), urea solution (50%, PP/PVC, EPDM), zinc orthophosphate (PP/316SS, EPDM), and ozonated water (up to 10 PPM, PVC, EPDM). Two material rules from the chart matter at the valve-spec stage: do not default to EPDM gaskets on the strong-acid and oxidizer set, which call for Viton on hydrochloric acid, hydrofluoric acid, hydrofluosilicic acid, hydrogen peroxide, phosphoric acid, sodium hypochlorite, and sulfuric acid, and Aflas on peracetic acid; and do not default to PVC fittings on DEF, peracetic acid, propylene glycol, and zinc orthophosphate, which call for 316 stainless, or on sulfuric acid at 98%, which calls for CPVC. See our full chemical compatibility reference before ordering valves and outlets.
The mistake to avoid
The costliest error on a tank this size is filling it with a dense fertilizer or acid blend without re-checking the specific gravity against the 1.9 rating and the 51,500-pound contents ceiling. A tank rated for 3,250 gallons of water is not automatically rated for 3,250 gallons of a 1.6 SG liquid fertilizer. If you batch or store fertilizer, density-driven stratification can also leave you running off-spec, so it is worth reading our guide on fertilizer-blend tank stratification. For mounting and DOT classification on a non-roadable applicator trailer, our Norwesco applicator and leg tank guide and 49 CFR exemption breakdown walk through the rules.
This horizontal leg tank ships LTL freight from the nearest Norwesco plant in our network in Fairfield, Texas, Lancaster, Ohio, or St. Bonifacius, Minnesota, palletized for forklift unloading. Freight is quoted live to your ZIP code, so get your number with the Freight Cost Estimator or call us at 866-418-1777 and we will line up the right delivery for a load of this weight.
