The Enduraplas 1600 Gallon Yellow Horizontal Sump Bottom Leg Tank ships as a complete unit on its support frame, built for haul-and-transport duty where the load rides on a trailer or skid and gets pumped down in the field. At 130 inches long, 71 inches wide, and 60 inches tall, this polyethylene tank carries a 1600-gallon capacity in a low, stable horizontal profile, and the sump bottom drains low so you can pull the tank close to empty without leaving product behind. The frame is what makes it haul-ready rather than a stationary tank.
Will it work for your job
The numbers that decide a haul tank are weight and footprint. Filled with water, this tank and its contents weigh roughly 13,344 lb; loaded to its maximum rated contents weight it reaches 25,354 lb. That gap matters: the 1.9 specific-gravity rating is the heaviest-duty rating in this line — it is the ceiling, not a mid-tier, so if you are looking for a "stronger" tank for denser product, this is already it. What the 1.9 rating tells you is what the tank survives; it does not tell you what your axles are rated for, so confirm your trailer, axles, and tow vehicle are rated for the loaded weight at the density you intend to haul. The footprint is 71.0 x 130.0 inches, so plan your trailer deck and tie-down points around that span. If you are sizing the tank to a job rather than a trailer, the Tank Sizing Calculator and the Tank Sizing Guide walk through capacity, weight, and density together. This tank ships as a frame-mounted unit; fitting and sump-outlet configuration is not pre-spec'd in our data, so confirm the fitting and outlet locations against the technical drawing on this page before you order any compatibility hardware.
Chemical compatibility
Confirm the resin before any chemical purchase — this is the blocking step. The resin is listed as HDLPE but flagged for confirmation, and HDLPE (high-density linear) versus XLPE (cross-linked) changes which chemicals the tank resists across the entire chart, so confirm with us which resin you have before putting this tank into chemical service. Once that is settled: this is a polyethylene tank with a 1.9 specific-gravity rating, which is what lets it carry dense liquids. Used within the OEM chemical-resistance chart, which is concentration- and temperature-specific, this tank pairs with a range of liquids when you match the fitting and gasket materials to the chemical, not to the tank. With PVC fittings and EPDM gaskets it handles aluminum sulfate at 50%, calcium chloride at 40%, ferric chloride at 50%, ferric sulfate at 60%, ferrous sulfate at 20%, magnesium chloride at 30%, sodium carbonate at 30%, sodium thiosulfate at 40%, potassium carbonate at 50%, saturated potassium hydroxide, ethylene glycol at 100%, polyaluminum chloride, sodium bisulfate, sodium bisulfite, and ozonated water up to 10 PPM. Acid and oxidizer service moves you to Viton gaskets: hydrochloric acid at 37% (PVC fittings), phosphoric acid at 85% (PVC), hydrogen peroxide at 50% (PVC), sodium hypochlorite below 16.5% (PVC), sulfuric acid at 98% (CPVC), and the fluorine acids — hydrofluoric acid at 48% and hydrofluosilicic acid at 26% (PP/PVC). For acetic acid at 60% use PP or PVC fittings with EPDM. A few services need stainless fittings: DEF at 32.5% (316SS, EPDM) and propylene glycol and zinc orthophosphate (PP/316SS, EPDM). Watch one outlier: peracetic acid at 30% is the only service in this list that requires both 316SS fittings and Aflas gaskets — it is the one buyers under-spec, so do not run EPDM or Viton there. Always verify your exact chemical, concentration, and temperature against the OEM chemical-resistance chart and our chemical compatibility reference before ordering fittings.
Avoid the costly mistake
The most common error on a 1.9-rated haul tank is matching the gasket to the tank instead of to the chemical. The polyethylene shell tolerates a wide chemical range, but EPDM, Viton, and Aflas each fail against different liquids — running EPDM where the chart calls for Viton, or PVC where it calls for stainless, is what causes leaks and fitting failures, not the tank wall. The second mistake is hauling at a density your trailer cannot legally carry; the 1.9 rating tells you what the tank survives, not what your axles are rated for. Confirm the resin (HDLPE vs XLPE) first, match every fitting and gasket to the chart, and weigh the loaded rig before you tow.
This tank ships LTL freight from the Enduraplas plant in Neche, ND, quoted live to your ZIP — get your number in seconds with the Freight Cost Estimator or call us at 866-418-1777. For agricultural haul and applicator setups, the guides on applicator and leg tanks for fertilizer, portable utility tanks and the 49 CFR 173.5 farm exemption, and fertilizer-blend tank stratification cover DOT scope, density, and field handling.
