The Enduraplas 2500 Gallon White Horizontal Sump Bottom Leg Tank is a haul-rated transport tank built for moving heavy liquids over the road and across the field. At 130 inches long by 87 inches wide and 77 inches tall, it carries a full 2,500 gallons on a sump-bottom horizontal body supported by integrated legs that keep the load stable in a frame or skid. The sump bottom drains to a low point for near-complete gravity emptying, which matters when you are running the dense, aggressive chemistries this tank is rated for, because leaving a residual heel between loads accelerates fitting and gasket attack and complicates flushing. The natural white polyethylene shell carries a 1.9 specific gravity rating, so it is engineered to haul liquids substantially heavier than water without exceeding its design limit.
Will it work for your load?
Run the weight math before you spec the trailer or frame, because a horizontal leg tank of this size moves real tonnage. Filled with plain water at 8.34 pounds per gallon, this tank holds roughly 20,850 pounds of liquid. Loaded to its full 1.9 specific gravity rating, the contents weight climbs to about 39,615 pounds, and that figure does not include the tank, cradle, or trailer. That is roughly 18,765 pounds more than the water figure, so anything specced off the water number is carrying only about half the heavy-liquid load it needs to. The 87 x 130 inch footprint is what you need to confirm against your deck or saddle layout. If you are sizing a transport package and want to check water-weight and dimensions against your equipment, the Tank Sizing Calculator and Tank Sizing Guide walk you through it. Refer to the technical drawing on this page for the fitting locations, sump detail, and leg geometry before you build the support structure. Fitting size, count, and placement are not yet specified in this listing, so call 866-418-1777 to confirm the as-built fitting package before you design plumbing.
Chemical compatibility
This is a polyethylene tank with a 1.9 specific gravity rating, which is what makes it a candidate for dense chemical service, not just water. The resin is recorded as HDLPE, but confirm the exact resin with us in writing before committing this tank to any chemical on the chart, since crosslinked and linear polyethylene behave differently with aggressive media at your specific concentration and temperature. All compatibility below comes from the chemical-resistance chart and is concentration- and temperature-specific, so match your exact conditions before ordering. With the right plumbing, this tank pairs with acids such as Sulfuric Acid at 98 percent (CPVC fittings, Viton gaskets), Hydrochloric Acid at 37 percent (PVC, Viton), Phosphoric Acid at 85 percent (PVC, Viton), Hydrofluoric Acid at 48 percent (PP/PVC, Viton), and Acetic Acid at 60 percent (PP/PVC, EPDM). It also handles water-treatment chemistry including Ferric Chloride at 50 percent, Aluminum Sulfate at 50 percent, Polyaluminum Chloride, Sodium Hypochlorite below 16.5 percent (PVC, Viton), and Hydrogen Peroxide at 50 percent (PVC, Viton). For fleet and ag fluid-handling work, which is exactly what runs out of the upper Midwest where this tank ships, it is compatible with DEF at 32.5 percent (316 stainless fittings, EPDM), Urea Solution at 50 percent, Ethylene Glycol at 100 percent, Propylene Glycol, and Calcium Chloride at 40 percent. The chart also lists Peracetic Acid at 30 percent (316SS, Aflas), Sodium Carbonate, Potassium Hydroxide (saturated), Potassium Carbonate, Sodium Thiosulfate, Ferric Sulfate, Ferrous Sulfate, Magnesium Chloride, Sodium Bisulfate, Sodium Bisulfite, Zinc Orthophosphate, Hydrofluosilicic Acid at 26 percent, and ozonated water up to 10 PPM. Note that fitting and gasket material change by chemical, so match each connection to the media you are running. Verify every selection against the chart and our chemical compatibility reference.
The mistake to avoid
The error that bites buyers on a tank this large and dense is under-rating the support and the plumbing for the actual liquid, not water. A 1.9 specific gravity load can push contents weight near 39,600 pounds, about 18,765 pounds over the water number, so a frame or trailer specced for water is roughly half the capacity it needs the moment you switch to a heavy chemical. Just as critical, the gasket material is not interchangeable across chemistries. The chart specifies EPDM for many salts and glycols but Viton for the strong acids and Aflas for peracetic acid, so the wrong elastomer on an aggressive medium fails even though the polyethylene body holds. Confirm the resin with us in writing, match every fitting and gasket to your exact concentration and temperature, and size your support to the heavy-liquid weight, not the water number.
This tank ships LTL freight, quoted live to your ZIP from the nearest stocking plant, currently Neche, ND. Get an estimate through our Freight Cost Estimator or call 866-418-1777 to lock in your transport package. For agricultural and fertilizer-haul context on horizontal and leg tanks, see our guide on applicator and leg tanks for fertilizer, the breakdown of portable utility tanks and the 49 CFR 173.5 agricultural exemption, and the field guide to fertilizer-blend tank stratification.
