Norwesco 55 Gallon Horizontal Leg Tank in White

The Norwesco 55 Gallon Horizontal Leg Tank in white is a polyethylene horizontal leg tank built to ride in a frame, skid, or trailer cradle for mobile water and ag-chemical hauling.The integrally molded legs give it a flat, stable footprint so the tank sits level when full and resists rocking on the road.It carries a 1.5 specific-gravity rating, which is the single most important number to check before you fill it: at full water the load is roughly 459 lb, and the tank is rated to carry contents up to about 688 lb.That headroom between water weight and rated weight is what lets it haul liquids heavier than water - up to the 1.5 SG limit - without overstressing the wall.

Will this tank work for your job

If you are moving fresh water, this 55-gallon Norwesco horizontal tank is straightforward: the full water weight of 459 lb is well inside the 688 lb contents rating, so you have plenty of margin.The leg-tank design is purpose-built for transport rather than stationary storage - the legs and low profile keep the center of gravity down on a truck bed or NRT-style trailer.For heavier liquids, do the math against specific gravity first: the 1.5 SG rating means anything with an SG of 1.5 or below is within spec, and the rated contents weight of 688 lb is your ceiling regardless of what you fill it with.If you are not sure whether your liquid and volume fit, run the numbers through our Tank Sizing Calculator and the Tank Sizing Guide.

Chemical compatibility

This tank is a polyethylene wall with a 1.5 specific-gravity rating.The resin is listed as HDLPE but is unconfirmed - confirm HDLPE versus XLPE with us before putting any chemical into service, because the two resins behave differently against aggressive media.Within the 1.5 SG rating, Norwesco's chemical-resistance chart shows this tank suited (concentration- and temperature-specific) to 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 fittings, 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 - call to confirm ozone service).Match the fitting and gasket material to the chemical exactly as listed - the wrong gasket fails long before the tank does.DEF is the one in-spec chemical here that requires 316 stainless fittings rather than PVC or PP, the ISO 22241 stainless requirement showing up in the data, so DEF haulers should plan their plumbing around that.For the regulatory side of mobile fertilizer and utility tanks, see our guides on applicator and leg tanks for fertilizer and 49 CFR 173.5 farm-fleet classification.

Chemicals that need a higher-SG tank

Several common ag and water-treatment chemicals exceed this tank's 1.5 SG rating and require a 1.9 SG tank instead - do not put them in this one.The EPDM-gasket group includes ethylene glycol, ferric sulfate, polyaluminum chloride, potassium carbonate, potassium hydroxide, propylene glycol (PP/316SS fittings), sodium bisulfate, sodium bisulfite, sodium thiosulfate, and zinc orthophosphate.The acids escalate further: crossing into hydrochloric acid, hydrofluoric acid, hydrofluosilicic acid, hydrogen peroxide, phosphoric acid, sulfuric acid (CPVC fittings), and sodium hypochlorite (bleach) means both a denser 1.5 SG tank AND a Viton seal system, while peracetic acid steps up to 316SS fittings with Aflas gaskets.Ferric chloride also requires the 1.5 SG tank.Plan for the more expensive elastomer, not just the denser wall.If your application is on that list, call us and we will point you to the correct higher-density tank.Full chart and material callouts live on our chemical compatibility resource.The single biggest mistake on a leg tank is filling it with a liquid heavier than its 1.5 SG rating - that is what cracks walls and overloads trailers, so verify SG before the first fill.

This Norwesco horizontal leg tank ships LTL freight, quoted live to your ZIP.It is stocked across Norwesco's plant network, so it ships from the nearest facility to you - Burnet TX, Fairfield TX, Griffin GA, Hanford CA, Lancaster OH, Owego NY, Shawnee OK, Sheldon IA, St.Bonifacius MN, Tooele UT, or Washougal WA - which keeps freight down.Get an exact freight quote with our Freight Cost Estimator, or call 866-418-1777 to confirm fittings, resin, and the right tank for your liquid before you order.