The Norwesco 925 Gallon Black Horizontal Leg Tank (SKU 45261) is a 925-gallon polyethylene horizontal leg tank molded for transport on a sled, skid, or trailer, where the integrated leg supports cradle the load and keep the center of gravity low. It measures 80 inches long by 62 inches wide by 65 inches tall, giving a 62.0 x 80.0 inch footprint, and the black UV-stabilized resin shades the contents to slow algae growth in field-mixed loads. Carried full of water it holds roughly 7,714 lb of contents; at its 1.5 specific gravity rating it is built to carry up to 11,572 lb — the number that matters when you are hauling fertilizer blends, brine, or other dense liquids heavier than water. One important freight note up front: this tank molds at a single plant in Washington Court House, Ohio, and ships LTL, so long lanes west and south cost real money — quote your ZIP before you commit.
Will it work for your load?
The 1.5 specific gravity rating is the deciding spec on a leg tank. Water weighs 8.34 lb per gallon (SG 1.0); a 30 percent calcium chloride brine or a salted-out fertilizer blend can run well past that, so check your product's density against the 1.5 ceiling before you fill. Think of it as a load ladder: roughly 7,714 lb at water (SG 1.0) climbing to the 11,572 lb maximum at the 1.5 SG ceiling, and that full mass rides on whatever trailer or sled carries the tank. Size your axle rating and tie-down points around the rated maximum, not the water figure. The horizontal leg geometry that keeps the center of gravity low is exactly what you want for a mobile nurse or applicator tank moving between field and fill site. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm the gallons and contents weight match your trailer, and see the technical drawing on this page for fitting locations and exact dimensions. If you run a fertilizer program, our guides on Norwesco applicator and leg tanks for fertilizer and fertilizer-blend tank stratification cover the density and mixing pitfalls specific to hauling dense liquids.
Chemical compatibility
This tank is molded from high-density polyethylene; the resin spec carries a question mark, so confirm HDLPE versus XLPE with us before any chemical service. It carries a 1.5 specific gravity rating, and the chemicals below are compatible with a 1.5 SG polyethylene tank at the concentrations shown. Most run on a standard PVC-and-EPDM fitting kit, but a few break from that default — DEF needs 316SS fittings, not PVC — so match your fitting and gasket materials to the chemical, not just the tank wall. Always verify against the OEM chemical-resistance chart for your specific concentration and operating temperature, because compatibility is both concentration- and temperature-dependent.
- Acetic Acid at 60 percent — PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate at 50 percent — PVC fittings, EPDM gaskets
- Calcium Chloride at 40 percent — PVC fittings, EPDM gaskets
- DEF at 32.5 percent — 316SS fittings, EPDM gaskets
- Ferrous Sulfate at 20 percent — PVC fittings, EPDM gaskets
- Magnesium Chloride at 30 percent — PVC fittings, EPDM gaskets
- Sodium Carbonate at 30 percent — PVC fittings, EPDM gaskets
- Urea Solution at 50 percent — PP/PVC fittings, EPDM gaskets
- Ozonated Water up to 10 PPM — PVC fittings, EPDM gaskets (reference chart pending)
A number of dense chemicals can run in this geometry but need a higher 1.9 specific gravity tank rather than this 1.5 SG model, and several of those also push the fittings off the standard PVC/EPDM kit toward Viton, Aflas, or CPVC. That list includes 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. We stock both 1.5 and 1.9 SG ratings, so if any of those is your product, call us and we will point you to the heavier wall. See our full chemical compatibility reference for the complete picture.
The mistake to avoid
The costliest error on a leg tank is filling a 1.5 SG model with a liquid heavier than 1.5 specific gravity, or sizing the trailer for water weight instead of the actual 11,572 lb rated maximum. A tank that handles 925 gallons of water fine can be overloaded long before it is full of brine or concentrated fertilizer. Confirm your liquid's density, confirm your fittings and gaskets match the chemical, and confirm your trailer is rated for the loaded weight.
This tank ships LTL freight from the Norwesco plant in Washington Court House, Ohio, with the cost quoted live to your ZIP code — get your number with the Freight Cost Estimator or call 866-418-1777 and we will quote it for you. Questions on specific gravity, fitting layout, or matching this horizontal leg tank to your application? Call 866-418-1777 and we will help you spec it right the first time.
