The Norwesco 4035 gallon horizontal elliptical leg tank (SKU N-42011) is a black, high density linear polyethylene haul tank built for over-the-road and applicator-style transport. Molded to a 1.9 specific gravity rating, it carries the heaviest fertilizer blends, salt brines, and concentrated acids that lighter tanks cannot safely hold. Its elliptical leg profile sits low and stable on a trailer or skid, and the cradle-style legs keep the load planted while you move. If you are searching for a Norwesco horizontal leg tank in HDPE that hauls dense liquid, this is the high-rating end of that line - 1.9 SG is the ceiling, so the buyer who needs maximum density has nowhere higher to go.
Will this tank work for your load?
The tank measures 75 in high, 92 in wide, and 192 in long, with a 92.0 x 192.0 inch footprint. Plan the weight before you plan the route: filled with water this tank carries about 33,652 lb, and at its full 1.9 specific gravity rating the contents alone can reach roughly 63,939 lb. That is a load you size the trailer, axles, and tie-downs around, not an afterthought. Run your liquid through the Tank Sizing Calculator and the Tank Sizing Guide to confirm your fluid's weight against your equipment's rating before you fill, and check the fitting layout, leg spacing, and outlet positions against the technical drawing on this page so your saddles, valves, and plumbing line up.
Chemical compatibility
This tank is molded in HDLPE (high density linear polyethylene) and rated to a 1.9 specific gravity, so it is built for dense chemical service, not just water. The 1.9 rating is what lets it haul heavy acids and concentrated salts - and because it is the top of the line, there is no higher-SG tank to step up to. Because the resin is linear (HDLPE), not cross-linked, confirm whether your application needs XLPE versus HDLPE before any aggressive chemical service; the two resins resist different chemicals. Compatibility is always concentration- and temperature-specific, so check each chemical against the OEM chemical-resistance chart and our chemical compatibility resource before committing the tank to service.
For the haul and applicator crowd, this tank handles DEF at 32.5% and urea solution at 50% (316SS and PP/PVC fittings, EPDM gaskets) - common high-density ag and emissions loads. Within its rating it is also compatible with acetic acid (60%, PP/PVC, EPDM), aluminum sulfate (50%, PVC, EPDM), calcium chloride (40%, PVC, EPDM), ethylene glycol (100%, PVC, EPDM), ferric chloride (50%, PVC, EPDM), ferric sulfate (60%, PVC, EPDM), ferrous sulfate (20%, PVC, EPDM), hydrochloric acid (37%, PVC, Viton), hydrofluoric acid (48%, PP/PVC, Viton), hydrofluosilicic acid (26%, PP/PVC, Viton), hydrogen peroxide (50%, PVC, Viton), magnesium chloride (30%, PVC, EPDM), peracetic acid (30%, 316SS, Aflas), phosphoric acid (85%, PVC, Viton), polyaluminum chloride (PVC, EPDM), potassium carbonate (50%, PVC, EPDM), potassium hydroxide (saturated, PVC, EPDM), propylene glycol (PP/316SS, EPDM), sodium bisulfate (PVC/PP, EPDM), sodium bisulfite (PVC/PP, EPDM), sodium carbonate (30%, PVC, EPDM), sodium hypochlorite (under 16.5%, PVC, Viton), sodium thiosulfate (40%, PVC, EPDM), sulfuric acid (98%, CPVC, Viton), zinc orthophosphate (PP/316SS, EPDM), and ozonated water (up to 10 PPM, PVC, EPDM). Match the fitting and gasket material to the chemical, not just the tank.
The mistake to avoid
The 1.9 specific gravity rating is the number that gets ignored and the one that ruins tanks. It is a weight ceiling, not a license to overfill: the heavier your liquid, the lower in the tank you can safely fill, and at full rating the contents push past 63,000 lb. Just as critical is matching the seal to the chemical - the two starkest examples in this tank's chart are 98% sulfuric acid, which demands CPVC fittings with Viton gaskets, and 30% peracetic acid, which needs 316SS with Aflas; drop a standard EPDM seal on either and it fails even though the tank is fine. And confirm linear (HDLPE) versus cross-linked (XLPE) resin for your chemical before service. For loads near the rating limit, mixing discipline matters - see our guides on fertilizer-blend tank stratification and HDPE color pigment chemistry, plus our coverage of Norwesco applicator and leg tanks and DOT classification for farm fleet use.
This tank ships LTL freight from the nearest Norwesco plant to your delivery ZIP - Fairfield, TX; Hanford, CA; Lancaster, OH; Philippi, WV; or St. Bonifacius, MN. With molding in five regions, your tank ships from the closest one to cut LTL miles and transit time on a load this heavy. Get a live freight quote to your ZIP with our Freight Cost Estimator, or call 866-418-1777 to lock in routing. Freight is quoted separately and is not included in the listed price.
