The Norwesco 3250 Gallon Horizontal Leg Tank (N-44600) is a black, high density linear polyethylene horizontal elliptical tank built for haul-and-apply work where you move large volumes of water or heavy fluid down the road. It measures 81 inches tall, 88 inches wide, and 152 inches long, riding on integrated legs that cradle the elliptical body in a transport saddle. That low, wide elliptical cross-section is the whole point of a leg tank: at 81 inches tall over an 88-inch width, it sits lower than a round tank of equal volume, dropping the loaded center of gravity for safer road handling. Norwesco rates this tank to a 1.9 specific gravity, the headline number that tells you how much weight the wall is engineered to carry.
Will it work for your load?
Start with weight, because on a 3250 gallon horizontal leg tank that is the number that decides everything. Filled with plain water the contents weigh about 27,105 pounds; the tank is rated to carry up to 51,500 pounds of contents at its 1.9 specific gravity rating. That is a 24,395-pound spread between a water load and a max-density load in the same shell, so hauling at full 1.9 SG nearly doubles the rolling weight of water and changes your axle ratings, braking, and road-legal GVWR, not just wall stress. The 1.9 SG rating is also the maximum standard polyethylene rating, so if your product fits here you are already at the ceiling of what a plastic tank carries and do not need to hunt for a "stronger" plastic. The footprint is 88.0 x 152.0 inches, so confirm your trailer deck and saddle support both the dimensions and the loaded weight before you commit. If you are matching tank size to a job, the Tank Sizing Calculator and Tank Sizing Guide walk through how gallons translate to road-legal weight.
Chemical compatibility
This tank is molded from high density linear polyethylene (HDLPE) and rated to a 1.9 specific gravity, which puts a wide range of heavy industrial and agricultural fluids in scope. Compatibility always depends on the OEM chemical-resistance chart at your specific concentration and temperature, and the fittings and gaskets must be matched to the chemical, not just the tank. The following are compatible with this tank's resin and SG rating at the listed concentrations:
- Acetic Acid (60%) - PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate (50%) - PVC fittings, EPDM gaskets
- Calcium Chloride (40%) - PVC fittings, EPDM gaskets
- DEF (32.5%) - 316SS fittings, EPDM gaskets
- Ethylene Glycol (100%) - PVC fittings, EPDM gaskets
- Ferric Chloride (50%) - PVC fittings, EPDM gaskets
- Ferric Sulfate (60%) - PVC fittings, EPDM gaskets
- Ferrous Sulfate (20%) - PVC fittings, EPDM gaskets
- Hydrochloric Acid (37%) - PVC fittings, Viton gaskets
- Hydrofluoric Acid (48%) - PP/PVC fittings, Viton gaskets
- Hydrofluosilicic Acid (26%) - PP/PVC fittings, Viton gaskets
- Hydrogen Peroxide (50%) - PVC fittings, Viton gaskets
- Magnesium Chloride (30%) - PVC fittings, EPDM gaskets
- Peracetic Acid (30%) - 316SS fittings, Aflas gaskets
- Phosphoric Acid (85%) - PVC fittings, Viton gaskets
- Polyaluminum Chloride - PVC fittings, EPDM gaskets
- Potassium Carbonate (50%) - PVC fittings, EPDM gaskets
- Potassium Hydroxide (saturated) - PVC fittings, EPDM gaskets
- Propylene Glycol - PP/316SS fittings, EPDM gaskets
- Sodium Bisulfate - PVC/PP fittings, EPDM gaskets
- Sodium Bisulfite - PVC/PP fittings, EPDM gaskets
- Sodium Carbonate (30%) - PVC fittings, EPDM gaskets
- Sodium Hypochlorite (<16.5%) - PVC fittings, Viton gaskets
- Sodium Thiosulfate (40%) - PVC fittings, EPDM gaskets
- Sulfuric Acid (98%) - CPVC fittings, Viton gaskets
- Urea Solution (50%) - PP/PVC fittings, EPDM gaskets
- Zinc Orthophosphate - PP/316SS fittings, EPDM gaskets
- Ozonated Water (up to 10 PPM) - PVC fittings, EPDM gaskets
Read the fitting and gasket callouts above carefully, because the most common failure on a chemical haul tank is not the tank itself but a wrong gasket. Acids like hydrochloric, hydrofluoric, sulfuric, phosphoric, and sodium hypochlorite call for Viton, peracetic acid needs Aflas, and an EPDM gasket in those services will fail long before the polyethylene does. Note too that closely related chemistries can call for different hardware: DEF at 32.5% lists 316SS fittings while a 50% urea solution lists PP/PVC, so match hardware to your exact product rather than assuming. For the full picture see our chemical compatibility resource, and always verify against the OEM chemical-resistance chart for your exact concentration and operating temperature.
The mistake to avoid
Do not undersize the specific gravity rating to your product. The 1.9 SG rating is what makes this tank safe for dense fertilizer blends and heavy acids, and undersizing it is how walls fail in haul service. If you are layering blended fertilizers, watch for stratification and salting-out, covered in our guide on fertilizer-blend tank stratification. For the road side, the Norwesco applicator and leg tank DOT scope and 49 CFR agricultural exemption guides explain how these tanks are classified for farm fleet use.
This Norwesco horizontal leg tank ships LTL freight, quoted live to your ZIP from the nearest stocking plant among Fairfield, TX, St. Bonifacius, MN, and Washington Court House, OH. Get an exact number with our Freight Cost Estimator, or call us at 866-418-1777 and we will route it from the closest plant to keep your freight cost down.
