The Norwesco 525 gallon horizontal leg tank is built for haul-and-apply work where you need to move water or compatible field liquids on a trailer or skid. The molded legs cradle the tank low and wide so the load sits long and stable in transit. This unit ships without fittings, so you spec the bulkhead, valve, and plumbing yourself to match your pump and transfer setup.
Will it work for your setup?
This is a 525 gallon polyethylene horizontal leg tank from Norwesco. Filled with water it weighs roughly 4,378 lb, so size your trailer, mounting frame, and tie-downs to carry the full load plus the tank itself. That 4,378 lb figure is the water number at 1.0 specific gravity; a denser field liquid weighs more, so confirm your liquid's specific gravity before you load. Because it ships without fittings, plan your outlet and vent hardware before delivery and confirm thread size and material against your pump. If you are matching tank volume to acreage, application rate, or trailer payload, run the numbers through the Tank Sizing Calculator and read the Tank Sizing Guide before you buy.
Speccing the fittings you'll add
Since this Norwesco tank ships without fittings, source the hardware separately: a bulkhead fitting, gasket, outlet valve, and a vent. Match the thread size and the gasket and fitting material to the liquid you are hauling, not just to water, so the seal holds against your actual field chemistry. If you want a hand pairing the right bulkhead, gasket, and valve to your pump and liquid, call 866-418-1777 and we will spec it with you before you order.
How it ships
This tank moves by LTL freight, quoted live to your ZIP. Norwesco molds at several plants, so your tank ships from the nearest one to keep transit and cost down: Fairfield, TX; Griffin, GA; Hanford, CA; Owego, NY; Shawnee, OK; St. Bonifacius, MN; Tooele, UT; Washington Court House, OH; and Washougal, WA. Get an exact figure with the Freight Cost Estimator by entering your delivery ZIP.
The mistake to avoid
The most common miss on a leg tank is treating it like a stationary storage tank. Because a horizontal leg tank carries its load low and long, a partially full tank lets liquid surge against the end walls and shift trailer balance, so plan baffled loading or full-or-empty hauling rather than half loads. Watch the weight math too: 525 gallons of 1.0 SG water is 4,378 lb, but a 1.5 SG fertilizer blend in the same tank is roughly 50 percent heavier liquid, about 6,570 lb, which can overload a trailer rated only for the water figure. Confirm both your liquid's specific gravity and your axle rating before loading. A blended load can also stratify in transit; see fertilizer-blend tank stratification and pump-around recirculation loop engineering for mixing discipline. And remember this is a haul tank, not an applicator or roadable trailer by default; if you are running fertilizer or working out DOT classification and the agricultural exemption, read Norwesco applicator and leg tanks for fertilizer and the breakdown of portable utility tanks and the agricultural exemption so you mount and title it correctly.
Ready to spec your freight? Enter your ZIP in the Freight Cost Estimator for a live LTL quote, or call 866-418-1777 and we will help you match fittings, mounting, and delivery to your rig.
