The Norwesco 3135 Gallon HDPE Horizontal Elliptical Leg Tank in black is built for hauling and field-applicating dense liquids that a standard water-spec tank cannot safely carry. It carries a 1.9 specific gravity rating, which is what lets you run fertilizer blends, brines, and concentrated chemistries up to that density. The molded-in legs cradle the elliptical body so the load rides low on a trailer, frame, or sled, and the black high density linear polyethylene (HDLPE) shell suits outdoor and seasonal storage. Because Norwesco molds this tank at plants in Fairfield, TX; Griffin, GA; Lancaster, OH; Shawnee, OK; St. Bonifacius, MN; and Tooele, UT, most buyers ship from a relatively close point, which shortens the LTL lane and helps keep freight on a unit this large in check.
Will it work for your load?
This is a large horizontal leg tank: 150 inches long, 88 inches wide, and 80 inches tall, with an 88.0 x 150.0 inch footprint. Sizing matters more here than on a water tank because of the SG rating, and the load can nearly double depending on product density. Filled to the top with plain water, the contents alone weigh about 26,146 lb; loaded to the full 1.9 SG rating, the same tank is rated to carry up to 49,677 lb of contents. That delta is the most decision-relevant number on this page: spec your trailer, sled, or applicator frame and axles for the loaded weight of your actual product, and never fill a 1.9 SG tank past the level your chassis and the tank rating allow. Run your numbers through the Tank Sizing Calculator and the Tank Sizing Guide so gallons, density, and trailer rating line up before delivery.
Chemical compatibility
This tank is molded in HDLPE rated to 1.9 specific gravity, which is what makes it a candidate for the heavier chemistries below. Compatibility always depends on concentration and temperature, and the fittings and gaskets must match the chemical, not just the tank. Confirm every selection against the OEM chemical-resistance chart for your specific concentration and service temperature, and visit our chemical compatibility hub for the full picture. In the pairings below the materials are: PVC and CPVC (rigid plastics), PP (polypropylene), 316SS (316 stainless steel), and the gaskets EPDM, Viton, and Aflas.
Chemistries this 1.9 SG HDLPE tank can handle, with the recommended fitting and gasket materials, include: acetic acid (60%, PP/PVC fittings, EPDM gaskets), aluminum sulfate (50%, PVC, EPDM), calcium chloride (40%, PVC, EPDM), DEF (32.5%, 316SS, 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), urea solution (50%, PP/PVC, EPDM), zinc orthophosphate (PP/316SS, EPDM), and ozonated water (up to 10 PPM, PVC, EPDM).
The mistake to avoid
The tank resin is listed as HDLPE; before any chemical service, confirm whether your application calls for HDLPE versus XLPE, because the two resins behave differently against aggressive chemistries. Then watch the fittings and gaskets, because the default PVC-with-EPDM combination is not enough for several of the chemistries above. DEF and peracetic acid call for 316SS, sulfuric acid steps up to CPVC, and hydrochloric, hydrofluoric, hydrofluosilicic, hydrogen peroxide, sodium hypochlorite, phosphoric, and sulfuric acid all require Viton in place of EPDM. No OEM-installed fittings are specified for this tank, so it ships without predefined outlet, vent, or manhole hardware; call before you plumb so the bulkhead, gasket, and fitting metallurgy match your exact chemical and concentration. Finally, the 1.9 SG rating is a ceiling, not a license to overfill a chassis. For agricultural and DOT-trailer use, our guides on Norwesco applicator and leg tanks for fertilizer, portable utility tanks and the 49 CFR 173.5 farm exemption, fertilizer-blend stratification, and HDPE color pigment chemistry explain how to keep a blended load on-spec.
This horizontal leg tank ships by LTL freight from the nearest Norwesco plant in our network (Fairfield, TX; Griffin, GA; Lancaster, OH; Shawnee, OK; St. Bonifacius, MN; or Tooele, UT), with freight quoted live to your ZIP. Get an estimate with the Freight Cost Estimator, or call us at 866-418-1777 to confirm the closest shipping point, fitting package, and lead time for your order.
