The Norwesco N-41270 is a 4,035-gallon horizontal elliptical leg tank molded in blue high density linear polyethylene, built for hauling and stationary storage where the load has to ride low and stable. At 192 inches long by 92 inches wide by 75 inches tall with a 92 x 192-inch footprint, it sits on integrated saddle legs so it can be strapped to a skid or trailer frame. The tank carries a 1.9 specific gravity rating, a single 16-inch lid, and an empty weight of 1,320 pounds, and Norwesco rates it to 120 F / 48 C. It ships without a fitting installed and no outlet is pre-molded, so budget a bulkhead or self-aligning fitting and gasket sized to your liquid and plumb the outlet and vent to your own application.
Will it handle your load
The 1.9 SG rating is the number that matters on a horizontal like this: it tells you how heavy a liquid the wall thickness is engineered to carry, and 1.9 is the top of Norwesco's range, so there is no heavier-wall version to step up to. Full of water the contents weigh about 33,652 pounds, and at the maximum rated specific gravity the tank is built to hold roughly 63,939 pounds of product. Use the Tank Sizing Calculator and the Tank Sizing Guide to match your liquid's density and daily draw to the 4,035-gallon capacity before you commit. Because this is a leg tank on a horizontal cylinder, plan your support cradle and tie-downs to the full 92 x 192-inch footprint, not just the leg pads. See the technical drawing on this page for leg and lid placement.
Chemical compatibility
This tank is HDLPE rated to 1.9 specific gravity — the maximum wall Norwesco offers, which is exactly what dense chemistry needs. Compatibility is always concentration- and temperature-specific, so confirm your exact chemical, concentration, temperature, and fitting and gasket materials before service, per the Snyder Industries OEM chemical-resistance chart. Because the tank ships with only the 16-inch lid, you spec the fitting metal and gasket elastomer to the chemical. The 1.9 SG wall supports higher-density products such as ethylene glycol (100%, PVC/EPDM), ferric chloride (50%, PVC/EPDM), ferric sulfate (60%, PVC/EPDM), phosphoric acid (85%, PVC/Viton), sulfuric acid (98%, CPVC/Viton), hydrochloric acid (37%, PVC/Viton), hydrofluoric acid (48%, PP or PVC/Viton), hydrofluosilicic acid (26%, PP or PVC/Viton), hydrogen peroxide (50%, PVC/Viton), sodium hypochlorite (under 16.5%, PVC/Viton), potassium hydroxide (saturated, PVC/EPDM), and peracetic acid (30%, 316SS with an Aflas gasket). Lighter-density loads it also handles include acetic acid (60%, PP or PVC/EPDM), calcium chloride (40%, PVC/EPDM), DEF (32.5%, 316SS/EPDM), urea solution (50%, PP or PVC/EPDM), and sodium carbonate (30%, PVC/EPDM). Cross-check every candidate against the full chemical compatibility reference. Separately, the resin itself is FDA-approved grade — a food-contact material signal, not a compatibility endorsement for the acids above.
The mistake to avoid
The trap on a Norwesco leg tank is treating it as a transport package for public roads. If you are hauling fertilizer or utility liquid, read the DOT scope first: our guides on applicator and leg tanks and the Non-Roadable Trailer scope and the 49 CFR 173.5 agricultural exemption spell out where these tanks are legal to run and where they are not. If you are blending, review stratification and mixing protocol before you fill, and plan top access with the ladder and manway engineering guide.
This 4,035-gallon Norwesco horizontal ships LTL as an oversized freight item, quoted live to your ZIP from the nearest stocking plant among Fairfield, TX; Hanford, CA; St. Bonifacius, MN; and Washington Court House, OH. Get a rate with the Freight Cost Estimator or call 866-418-1777 to confirm capacity, fittings, and delivery before you order.
