The Norwesco 1025 Gallon Horizontal Leg Tank is a polyethylene transport body built for haul and applicator duty, where the tank rides on a trailer or skid and the legs keep a low, horizontal load stable on the move. It carries a 1.9 specific gravity rating, putting it at the heavy end of Norwesco's leg-tank line and engineered for dense liquids well past plain water. If you have been searching for a horizontal leg tank or HDPE horizontal tank for water hauling, fertilizer, or chemical transport staging, this 1025-gallon size covers full nurse-tank and field-cart loads. The resin is recorded as HDLPE but not yet confirmed; if your service is chemical rather than water, see the resin note below before you commit.
Will it work for your load?
This tank holds 1025 gallons. Filled with water it carries roughly 8,548 lb of contents, and the 1.9 specific gravity rating means it is built to handle up to about 16,242 lb of dense liquid at full volume. That spread is the entire point of the 1.9 rating: a tank fine for water at 1025 gallons can be badly overloaded by a heavy fertilizer blend or brine at the same level, and this body is built for the heavier end. These are liquid-contents weights only, so add the empty tank and your trailer or skid weight when you check axle ratings and road limits. Run your liquid's actual density through the Tank Sizing Calculator and the Tank Sizing Guide against these numbers before you load. If you are blending fertilizer, read the physics of tank stratification and density-driven salting-out before your spreader runs off-spec, and for trailer and DOT scope on applicator and leg tanks see our guide to Norwesco applicator and leg tanks for fertilizer. Refer to the technical drawing on this page for fitting locations and dimensions.
Chemical compatibility
This is molded polyethylene with a 1.9 specific gravity rating. The resin is recorded as HDLPE but not confirmed; confirm HDLPE versus XLPE with us before any chemical service, because crosslinked and linear polyethylene behave differently with aggressive chemistry. With the right fittings and gaskets, the 1.9 rating supports a wide range of liquids per the OEM chemical-resistance chart, which is always concentration- and temperature-specific. Pay attention to the gasket and fitting pairing — it changes by chemical on the same tank:
- Viton gaskets for the acids and oxidizers: sulfuric acid at 98% (CPVC fittings), hydrochloric acid at 37% (PVC), phosphoric acid at 85% (PVC), hydrofluoric acid at 48% (PP/PVC), hydrofluosilicic acid at 26% (PP/PVC), hydrogen peroxide at 50% (PVC), and sodium hypochlorite below 16.5% (PVC).
- 316 stainless fittings (not PVC) for DEF at 32.5% (EPDM gasket) and, with PP/316SS, propylene glycol and zinc orthophosphate.
- Aflas gasket for the lone outlier, peracetic acid at 30% (316SS fittings).
- PVC/PP fittings with EPDM for the salts, glycols, and ag blends: urea solution at 50%, calcium chloride at 40%, magnesium chloride at 30%, aluminum sulfate at 50%, ferric chloride at 50%, ferric sulfate at 60%, ferrous sulfate at 20%, acetic acid at 60%, ethylene glycol at 100%, sodium carbonate at 30%, sodium thiosulfate at 40%, potassium carbonate at 50%, potassium hydroxide at saturation, and ozonated water up to 10 PPM.
Several listed chemicals are concentration-dependent and not yet rated at a specific strength here, including polyaluminum chloride, sodium bisulfate, and sodium bisulfite (PVC/PP, EPDM) — confirm your concentration with us before service. Match the fitting and gasket material to your specific chemical, verify against the OEM chart at your concentration and temperature, and start at our full chemical compatibility reference.
The mistake to avoid
The costliest error on a 1.9 SG leg tank is treating the gasket as an afterthought. Note that the same tank calls for Viton on the acids and oxidizers but EPDM on the salts and glycols, and Aflas on peracetic acid — putting an EPDM gasket on a sodium hypochlorite or sulfuric acid line is a classic field failure even though the polyethylene body is fine. The same goes for fitting metal: DEF and peracetic acid want 316 stainless, not PVC. The second trap is the resin question above; do not assume crosslinked versus linear PE for an aggressive chemical until it is confirmed. And do not load to 1025 gallons of a heavy blend without checking the 16,242 lb rated weight against your liquid's real density first.
This tank ships LTL freight, quoted live to your ZIP from the nearest Norwesco plant among Fairfield TX, Griffin GA, Hanford CA, Lancaster OH, Owego NY, Shawnee OK, St. Bonifacius MN, and Tooele UT. Get your number now with the Freight Cost Estimator, or call us at 866-418-1777 to confirm the right tank, fittings, and gasket package for your service before you order.
