The Norwesco 710 Gallon Horizontal Leg Tank is built for mobile water haul, fertilizer, and applicator-trailer work. The molded legs flatten across the bottom so the tank sits stable on a trailer deck or skid, and the bottom drain empties it without a forward tilt. At 104 inches long, 47 inches wide, and 57 inches tall, it carries 710 gallons on a 47.0 x 104.0 inch footprint. This is the Norwesco horizontal leg tank that farm and applicator fleets ask for by name.
Will it work for your load?
Norwesco molds this tank to a 1.5 specific gravity rating, so it carries liquids up to 1.5 times the density of water at full volume. Plain water is SG 1.0 - well inside that rating - so a water load weighs about 5,921 lb full. The number to plan against scales with your fluid: actual loaded weight runs roughly 710 gal x 8.34 lb/gal x your fluid's SG, plus tank tare. At SG 1.0 that is about 5,921 lb; at the 1.5 ceiling it reaches about 8,882 lb. A light chemical near SG 1.1 lands closer to 6,500 lb, not the full 8,882 - so size your trailer and axle to the fluid you actually haul, not the worst case. Treat these as estimates and confirm before loading. The Tank Sizing Calculator and Tank Sizing Guide help match capacity to your rig.
Fittings are specified separately
This tank lists no factory fittings in our data. The bottom-drain outlet, any bulkhead or vent fittings, and the gasket material for your service are specified and sourced separately, not assumed in the box. Call 866-418-1777 to spec the bottom-drain outlet and the right hardware before you order, especially if you are running anything other than water.
Chemical compatibility
The shell is high-density linear polyethylene at a 1.5 SG rating. The resin code carries a question mark in our source data, so confirm HDLPE versus XLPE with us before any chemical service - call 866-418-1777. Built to that 1.5 SG rating with the correct fittings and gaskets, this tank handles Acetic Acid at 60% (PP/PVC fittings, EPDM gaskets), Aluminum Sulfate at 50% (PVC, EPDM), Calcium Chloride at 40% (PVC, EPDM), DEF at 32.5% (316SS, 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). Acetic Acid and Ozonated Water are confirmed compatible at the listed concentration and hardware, but do not have a dedicated page yet - call for detail. Match fitting and gasket materials per chemical exactly as listed, and verify against the OEM chemical-resistance chart for your specific concentration and temperature.
Several chemicals exceed what a 1.5 SG tank should carry and require a higher 1.9 SG tank instead. If you are hauling any acid, sodium hypochlorite, hydrogen peroxide, or glycol on this list, this 1.5 SG tank is the wrong tank - do not order it for that service, and note that several also flip the gasket to Viton or the fitting to CPVC: Ethylene Glycol, Ferric Chloride, Ferric Sulfate, Hydrochloric Acid (Viton), Hydrofluoric Acid (Viton), Hydrofluosilicic Acid (Viton), Hydrogen Peroxide (Viton), Peracetic Acid (316SS/Aflas), Phosphoric Acid (Viton), Polyaluminum Chloride, Potassium Carbonate, Potassium Hydroxide, Propylene Glycol, Sodium Bisulfate, Sodium Bisulfite, Sodium Hypochlorite (Viton), Sodium Thiosulfate, Sulfuric Acid (CPVC/Viton), and Zinc Orthophosphate. Call 866-418-1777 for the 1.9 SG equivalent. See the full breakdown on our chemical compatibility resource.
The mistake to avoid
The common error on a leg tank this size is matching it to the chemical by name and skipping the specific gravity math. Run the weight against your trailer and axle rating for the fluid you actually haul, and settle the HDLPE-versus-XLPE resin question before you put any solvent or aggressive chemical in it. For trailer-scope and applicator detail, see our guides on Norwesco applicator and leg tanks for fertilizer and fertilizer-blend tank stratification. Check the technical drawing on this page for fitting locations and overall dimensions.
This tank ships LTL freight from the Norwesco plant in Tooele, UT, quoted live to your ZIP. Get a real number with our Freight Cost Estimator, or call 866-418-1777 to talk through trailer fit, fittings, and the right specific gravity rating for your service.
