The Norwesco 5025 gallon horizontal leg tank is a full-truckload haul tank built for moving large volumes of water and density-rated liquids across the farm or job site. Molded in blue HDPE with a 1.9 specific gravity rating, this is a serious applicator and nurse-tank platform for operators who fill heavy and run between fields. If you have been searching for a Norwesco horizontal leg tank in HDPE, this is the top of the size range.
Will this tank handle my load?
The 1.9 specific gravity rating is what sets this tank apart from a standard water tank. Filled with water alone, the contents weigh 41,908 lb; at the maximum rated density the tank is built to carry up to 79,626 lb of contents. That headroom is why a 1.9-rated horizontal leg tank is the right call for heavy liquid fertilizer blends rather than just water. One reality to plan around: even the water-only fill of 41,908 lb exceeds what a single legal highway payload allows, so your trailer, axle, and pump ratings matter as much as the tank itself. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm your rig carries the filled weight before you spec the haul. See the technical drawing on this page for fitting locations and overall dimensions, and call 866-418-1777 if you need help confirming a fit.
Chemical compatibility
Before anything else: the resin on this tank is listed as HDLPE but is not fully confirmed, so confirm the exact resin with us before putting it into chemical service. With that gate in place, this tank carries a 1.9 specific gravity rating in polyethylene resin, and compatibility always depends on concentration and temperature — check the OEM chemical-resistance chart for the specific concentration and service temperature you run. One warning that prevents the most expensive field mistake: the standard EPDM gasket does NOT cover the aggressive oxidizers and strong acids. Hydrochloric acid (37%), hydrofluoric acid (48%), hydrofluosilicic acid (26%), hydrogen peroxide (50%), phosphoric acid (85%), sodium hypochlorite (<16.5%), and sulfuric acid (98%) all need Viton gaskets (sulfuric on CPVC fittings); peracetic acid (30%) needs an Aflas gasket on 316SS; and DEF (32.5%) runs on 316SS fittings. The EPDM-gasket liquids include acetic acid (60%) on PP/PVC, aluminum sulfate (50%), calcium chloride (40%), ethylene glycol (100%), ferric chloride (50%), ferric sulfate (60%), ferrous sulfate (20%), magnesium chloride (30%), polyaluminum chloride, potassium carbonate (50%), potassium hydroxide (saturated), propylene glycol, sodium bisulfate, sodium bisulfite, sodium carbonate (30%), sodium thiosulfate (40%), urea solution (50%), zinc orthophosphate, and ozonated water (up to 10 PPM). Match your fitting and gasket materials to the exact chemical you run, and use the full chemical compatibility reference to verify before service.
The mistake to avoid
The most common error on a tank this size is treating the 1.9 SG rating as optional. Pump a heavy fertilizer blend into a tank rated below your liquid density and you risk wall fatigue and failure; this Norwesco is rated to 1.9 specifically so it can carry dense blends, and at 1.9 it sits at the top of the density range. The second mistake is putting it into chemical service before confirming the resin: because the resin is listed as HDLPE with a question mark, confirm the exact resin with us first before running aggressive chemistries. For background on agricultural haul and trailer scope, see our guides on Norwesco applicator and leg tanks for fertilizer, portable utility tanks and the 49 CFR 173.5 agricultural exemption, and fertilizer-blend tank stratification and mixing protocol.
This tank ships LTL freight from whichever Norwesco plant is closest to you — St. Bonifacius, MN or Lancaster, OH — quoted live to your ZIP. Get your number with the Freight Cost Estimator or call 866-418-1777 to lock in your haul.
