The Enduraplas 2800 Gallon Black Horizontal Sump Bottom Leg Tank is built for haul-and-transport duty where a low, stable load and a self-draining floor matter. Molded in black polyethylene with a 1.9 specific gravity rating, this horizontal leg tank carries a true 2,800 gallons across a 97-inch wide by 145-inch long footprint and stands 75 inches tall. The sump bottom pitches contents toward the outlet so you can draw the tank down without leaving product trapped on the floor, and the integrated leg design keeps it cradled on a trailer or skid for moving dense liquids between fill point and field.
Will it work for your load?
Run the numbers before you commit. Filled with water this tank weighs about 23,352 pounds, and at its 1.9 specific gravity rating the maximum rated contents weight is roughly 44,369 pounds. A 1.9 SG rating means the shell is built to carry contents up to about 15.8 pounds per gallon (1.9 times the 8.34 lb/gal weight of water), so check your fluid's density against that ceiling, not just total weight. That is the whole point of a 1.9 SG tank: it is engineered for dense liquids - heavy fertilizer blends, brines, and acids - that would overstress a lighter-rated shell. At 1.9 SG this is the densest-rated shell offered at this size, so there is no heavier-rated upgrade to step up to; the carrying capacity of your trailer, axles, and the legs of the tank is your governing constraint, not the tank. Match the 44,369-pound rating against that hardware before you fill it. For sizing against your application weight and density, use the Tank Sizing Calculator and the Tank Sizing Guide. See the technical drawing on this page for exact dimensions and sump geometry. Outlet and fitting size and type are not in our verified record for this SKU - confirm the sump outlet size by phone at 866-418-1777 before ordering valves or cam-locks.
Chemical compatibility
This is a polyethylene tank rated at 1.9 specific gravity. The resin is identified as HDLPE, but the record carries a flag - confirm HDLPE versus XLPE for your exact application before placing this tank into chemical service, because crosslinked and high-density linear polyethylene resist stress and chemicals differently. Compatibility also depends on getting the fitting and gasket materials right, not just the tank wall. Based on the chemical-resistance reference - which is concentration and temperature specific - this shell is referenced for handling acetic acid at 60% (PP/PVC fittings, EPDM gaskets), aluminum sulfate at 50% (PVC, EPDM), calcium chloride at 40% (PVC, EPDM), DEF at 32.5% (316SS, EPDM), ethylene glycol at 100% (PVC, EPDM), ferric chloride at 50% (PVC, EPDM), ferric sulfate at 60% (PVC, EPDM), ferrous sulfate at 20% (PVC, EPDM), hydrochloric acid at 37% (PVC, Viton), hydrofluoric acid at 48% (PP/PVC, Viton), hydrofluosilicic acid at 26% (PP/PVC, Viton), hydrogen peroxide at 50% (PVC, Viton), magnesium chloride at 30% (PVC, EPDM), peracetic acid at 30% (316SS, Aflas), phosphoric acid at 85% (PVC, Viton), polyaluminum chloride (PVC, EPDM), potassium carbonate at 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 at 30% (PVC, EPDM), sodium hypochlorite below 16.5% (PVC, Viton), sodium thiosulfate at 40% (PVC, EPDM), sulfuric acid at 98% (CPVC, Viton), urea solution at 50% (PP/PVC, EPDM), zinc orthophosphate (PP/316SS, EPDM), and ozonated water up to 10 PPM (PVC fittings, EPDM gaskets - see the chemical compatibility reference). Confirm your specific chemical, concentration, and temperature against the chart and the full chemical compatibility reference before service.
The mistake to avoid
Do not pair a Viton-required chemical with EPDM gaskets, or vice versa - the tank wall surviving a chemical means nothing if the seal at the fitting fails first. Sodium hypochlorite, hydrochloric acid, hydrofluoric acid, hydrogen peroxide, phosphoric acid, and sulfuric acid all call for Viton (or Aflas for peracetic acid), while most salts and bases run on EPDM. The other trap on a 1.9 SG horizontal tank is overlooking weight: at 44,369 pounds maximum rated contents this is a transport decision as much as a storage one, so verify your trailer, fertilizer-blend handling, and DOT scope first. Our guides on applicator and leg tanks for fertilizer, portable utility tank DOT classification, and fertilizer-blend tank stratification cover the field decisions that matter here.
This Enduraplas horizontal leg tank ships LTL freight from the plant in Neche, ND - the nearest named shipping point for this tank - quoted live to your ZIP. Get your freight number on the Freight Cost Estimator or call 866-418-1777 to talk through the build with our team.
