The Enduraplas 3200 Gallon White Horizontal Sump Bottom Leg Tank is built for haul-route service, riding on an integrated frame with molded legs so a 3,200-gallon load sits stable on a trailer or skid. Molded from polyethylene in natural white and rated to 1.9 specific gravity, this horizontal leg tank carries a footprint of 97 in wide by 145 in long and stands 84 in tall. The sump bottom pulls contents toward a low drain point for cleaner emptying, which matters on a mobile horizontal tank that has to fully discharge between loads.
Will it handle your load?
The number that drives every decision here is the 1.9 specific-gravity rating, and on this tank it is the terminal spec - this is the dense-fluid version, not a stepping stone to something heavier. Filled with water at SG 1.0, the contents weigh 26,688 lb. The frame and tank are rated to carry up to 50,707 lb of contents, which is what lets you run heavier-than-water fluids in this horizontal tank rather than just water. Confirm the loaded weight of your fluid against that 50,707 lb rating and against your trailer or axle capacity before you fill. The technical drawing on this page shows the leg layout, sump location, and dimensional callouts for fitting placement and frame clearance. If you are matching tank size to a route or a daily volume, the Tank Sizing Calculator and Tank Sizing Guide walk through capacity, weight, and footprint together.
DEF and diesel exhaust fluid transport
If you are hauling DEF, this tank carries diesel exhaust fluid at 32.5% concentration - but with one hard requirement: the wetted metal must be 316 stainless steel, not the PVC or PP plastic that handles most other fluids on this tank, paired with EPDM gaskets. DEF degrades on contact with the wrong metal, so spec your fittings, valves, and any pump hardware accordingly before you plumb the system. See the DEF compatibility detail for the full wetted-material breakdown.
Chemical compatibility
This is a polyethylene tank with a 1.9 specific-gravity rating, which is why it suits dense agricultural and industrial fluids that a standard 1.0 or 1.5 SG tank cannot carry. One thing gates all chemical service here: the resin is listed as HDLPE but unconfirmed, and because the aggressive fluids below depend entirely on the resin grade, confirm whether your tank is HDLPE or XLPE before you put any chemical in it - high-density linear and cross-linked polyethylene differ in chemical resistance. Always check the OEM chemical-resistance chart for your specific concentration and service temperature, and spec fittings and gaskets to match the fluid. Fluids that run on PVC fittings with EPDM gaskets include aluminum sulfate (50%), calcium chloride (40%), ferric chloride (50%), ferric sulfate (60%), ferrous sulfate (20%), magnesium chloride (30%), potassium carbonate (50%), potassium hydroxide (saturated), sodium carbonate (30%), sodium thiosulfate (40%), and ethylene glycol (100%). Acetic acid (60%), hydrofluoric acid (48%), hydrofluosilicic acid (26%), and urea solution (50%) run on PP/PVC fittings, with HF and hydrofluosilicic acid stepping up to Viton gaskets. For more aggressive service, several fluids call for Viton on PVC, including hydrochloric acid (37%), hydrogen peroxide (50%), phosphoric acid (85%), and sodium hypochlorite (<16.5%), while sulfuric acid (98%) requires CPVC fittings with Viton. Peracetic acid (30%) needs 316SS fittings and Aflas gaskets. Others compatible with this tank include polyaluminum chloride (PVC/EPDM), propylene glycol (PP/316SS, EPDM), sodium bisulfate and sodium bisulfite (PVC/PP, EPDM), zinc orthophosphate (PP/316SS, EPDM), and ozonated water up to 10 PPM on PVC with EPDM. See the full chemical compatibility reference and verify your exact concentration and temperature before committing.
The mistake to avoid
The trap on a leg tank this size is treating the 1.9 SG rating as a number you can ignore at the fitting and gasket level. The shell may be rated for the fluid, but the wrong fitting or gasket material is where dense chemical fluids fail - run PVC, CPVC, PP, or 316SS with the correct EPDM, Viton, or Aflas gasket per the compatibility chart, not whatever is on hand. And do not assume the resin grade: with HDLPE versus XLPE unconfirmed in the source data, settle that question before any chemical touches this tank.
This tank ships LTL freight from the Enduraplas plant in Neche, ND, quoted live to your ZIP. Get a number in seconds with the Freight Cost Estimator, or call 866-418-1777 to talk through fitting layout, frame mounting, and the right tank for your route. For agricultural and applicator use cases, the guides on applicator and leg tanks for fertilizer, portable utility tank DOT classification, and fertilizer-blend tank stratification are worth a read before you spec the system.
