The Norwesco 1335 Gallon Horizontal Elliptical Leg Tank in White is a polyethylene horizontal leg tank built for haul and field-transport duty, where the load rides in the cradle of the tank's own legs rather than a separate stand. The elliptical cross-section keeps the center of gravity low across a 126-inch length, a 66-inch width, and a 55-inch height, so the tank sits stable on a trailer or skid while you move product field to field. Rated to 1.5 specific gravity, it carries water and a range of agricultural and process liquids heavier than water within that rating.
Will it work for your load
Filled with water, this tank weighs about 11,134 lb full; at its 1.5 specific gravity rating, maximum rated contents weight is 16,701 lb. Those are the numbers that decide your trailer, axles, and tie-down plan, not the gallon figure alone. The 66 x 126 inch footprint is what you measure against your deck or frame before you commit. Even within the 1.5 rating, a part-full elliptical leg tank shifts load fore-and-aft over its 126-inch length in transit, so bring that 16,701 lb max rated weight onto your tie-down and axle plan and secure for partial loads. If you are still matching tank to job, run the figures through the Tank Sizing Calculator and the Tank Sizing Guide so the rated weight, not the volume, drives the spec. See the technical drawing on this page for fitting locations and leg geometry. For how Norwesco leg and applicator tanks fit DOT non-roadable trailer scope, the guide on Norwesco applicator and leg tanks for fertilizer is worth a read, alongside the portable utility tank 49 CFR exemption breakdown.
Chemical compatibility
This tank is rated to 1.5 specific gravity. The resin designation is not fully confirmed in our data, so confirm HDLPE versus XLPE construction on the Norwesco tank data sheet before putting this unit into chemical service. At the 1.5 rating it handles, per our chemical compatibility data and always concentration- and temperature-specific, a clear set of liquids. The highest-intent service here is DEF at 32.5%, which requires 316 stainless fittings and EPDM gaskets, not the PVC most of the others use, so do not plumb a DEF tank with plastic fittings. The rest: Acetic Acid at 60% (PP/PVC fittings, EPDM gaskets), Aluminum Sulfate at 50% (PVC, EPDM), Calcium Chloride at 40% (PVC, EPDM), Ferrous Sulfate at 20% (PVC, EPDM), Magnesium Chloride at 30% (PVC, EPDM), Sodium Carbonate at 30% (PVC, EPDM), Urea Solution at 50% (PP/PVC, EPDM), and Ozonated Water up to 10 PPM (PVC, EPDM). Match fitting and gasket materials to the chemical, not just the tank, and verify every selection against the chemical compatibility chart.
Chemicals that need a heavier 1.9 tank
Several liquids people try to put in a leg tank exceed this tank's 1.5 rating and require a 1.9 specific gravity tank instead. Most take EPDM gaskets: Ethylene Glycol, Ferric Chloride, Ferric Sulfate, Polyaluminum Chloride, Potassium Carbonate, Potassium Hydroxide, Propylene Glycol, Sodium Bisulfate, Sodium Bisulfite, Sodium Thiosulfate, and Zinc Orthophosphate. Acids and oxidizers in this group take Viton gaskets, not EPDM: Hydrochloric Acid, Hydrofluoric Acid, Hydrofluosilicic Acid, Hydrogen Peroxide, Phosphoric Acid, and Sodium Hypochlorite. Sulfuric Acid goes a step further, calling for CPVC fittings with Viton, and Peracetic Acid needs 316 stainless fittings with Aflas gaskets. The single most common mistake on a tank like this is reading the gallon number and ignoring the specific gravity rating, then loading a dense fertilizer blend or acid that the 1.5 wall was never built to carry, or sealing an acid with an EPDM gasket. If your product is on this 1.9 list, this 1.5 tank is the wrong unit, so call 866-418-1777 and we will spec a 1.9-rated tank for that service.
This tank ships LTL freight from the nearest Norwesco plant in our network, either Lancaster, OH or St. Bonifacius, MN, with cost quoted live to your ZIP. Get a number in seconds with the Freight Cost Estimator, or call 866-418-1777 and we will quote it for you and confirm the right tank for your load.
