The Enduraplas 1400 Gallon Green Horizontal Leg Tank is a polyethylene horizontal leg tank built for moving liquid, not just storing it. At 1,400 gallons in a 102-inch-long, 70-inch-wide, 66-inch-tall body, the integrated leg design lets the tank sit flat and stable on a trailer or skid so the load stays put during transport. The tank carries a 1.9 specific gravity rating, the top of the polyethylene range, which is what makes it a genuine haul tank rather than a water-only vessel.
Will this Enduraplas horizontal leg tank work for your job?
Start with weight, because that is where a horizontal leg tank earns its 1.9 rating. Filled with plain water, this tank holds 11,676 pounds. At its maximum rated contents weight, it carries 22,184 pounds, which is the headroom that lets you haul heavier-than-water liquids like fertilizer blends and many of the chemicals below. The footprint is 70.0 x 102.0 inches, so confirm your trailer deck or pad supports both that area and the loaded weight before you commit. Use the Tank Sizing Calculator and the Tank Sizing Guide to match capacity, weight, and footprint to your application. For DOT and trailer classification specifics on hauling fertilizer in leg and applicator tanks, see our guide on applicator and leg tanks for fertilizer and the breakdown of portable utility tanks and the 49 CFR 173.5 agricultural exemption. Refer to the technical drawing on this page for fitting and outlet locations.
Chemical compatibility
This tank is polyethylene rated to 1.9 specific gravity. The resin is listed as HDLPE, but confirm whether your unit is HDLPE or another polyethylene grade before putting it into chemical service, because resin type affects the chemical-resistance profile. Compatibility below is drawn from the OEM chemical-resistance chart and is concentration- and temperature-specific, so verify your exact chemical, concentration, and operating temperature against that chart before filling. Match both the fitting and the gasket material exactly as listed, because the most common and most expensive mistake on a tank like this is ordering the wrong gasket or fitting kit.
Most chemicals here use PVC (or PP/PVC) fittings with EPDM gaskets: 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), Magnesium Chloride (30%, PVC, EPDM), Polyaluminum Chloride (PVC, EPDM), Potassium Carbonate (50%, PVC, EPDM), Potassium Hydroxide (saturated, PVC, EPDM), Sodium Bisulfate (PVC/PP, EPDM), Sodium Bisulfite (PVC/PP, EPDM), Sodium Carbonate (30%, PVC, EPDM), Sodium Thiosulfate (40%, PVC, EPDM), Urea Solution (50%, PP/PVC, EPDM), and Ozonated Water (up to 10 PPM, PVC, EPDM).
Several require Viton gaskets — do not substitute EPDM: Hydrochloric Acid (37%, PVC, Viton), Hydrofluoric Acid (48%, PP/PVC, Viton), Hydrofluosilicic Acid (26%, PP/PVC, Viton), Hydrogen Peroxide (50%, PVC, Viton), Phosphoric Acid (85%, PVC, Viton), and Sodium Hypochlorite (under 16.5%, PVC, Viton).
A handful require metal or CPVC fittings — not the default PVC: DEF (32.5%, 316SS fittings, EPDM), Peracetic Acid (30%, 316SS fittings, Aflas gaskets), Sulfuric Acid (98%, CPVC fittings, Viton), Propylene Glycol (PP/316SS, EPDM), and Zinc Orthophosphate (PP/316SS, EPDM). For these, do not substitute standard PVC fittings. See the full concentration- and temperature-specific data on each chemical's page and the master chemical compatibility chart.
The one mistake to avoid
Do not treat the 1.9 specific gravity rating as your fill limit. At 1.9 SG this tank is already at the top of the polyethylene range, so there is no higher-SG poly tank to step up to — which means the binding constraint is the 22,184-pound maximum rated contents weight, not wall density. The math is close: full water is 11,676 pounds at 1.0 SG, and 22,184 divided by 11,676 works out to roughly 1.90 SG, so a 1.9-density liquid hits the weight cap at essentially full volume with almost no margin. With any dense chemical, calculate your liquid's weight at your fill level first and run to an SG-derived fill line rather than brim-full, then confirm both your trailer and your fittings are rated for the load.
This tank ships LTL freight from the Enduraplas plant in Neche, ND, the nearest named shipping point for this unit, and freight is quoted live to your ZIP. Get an exact number with our Freight Cost Estimator, or call 866-418-1777 to talk through hauling setup, fittings, and delivery. For more on blending and managing dense fertilizer loads in transport, read our guide on fertilizer-blend tank stratification and mixing protocol.
