The Enduraplas 1900 Gallon Green Horizontal Sump Bottom Leg Tank arrives on its integrated steel frame, built for haul-and-transfer duty where the load rides flat and low. The horizontal body measures 130 inches long by 71 inches wide and stands 70 inches tall on its frame, and the sump bottom drains the tank toward a low point so you can pull product down without leaving heel volume behind. This is a 1900-gallon polyethylene tank rated to a 1.9 specific gravity, which is why operators searching for an Enduraplas horizontal leg tank or a horizontal sump tank land on this unit: it carries dense fluids that a standard water-only leg tank cannot. The 1.9 rating plus the frame-mounted, low-profile build also make it a practical DEF (diesel exhaust fluid) and urea-solution transport and dispensing unit for ag and fleet operations.
Will it work for your load?
The 1.9 specific gravity rating is the number that decides the job. Filled with water (SG 1.0) the contents weigh about 15,846 pounds at the full 1900-gallon line. Because the wall is rated to 1.9, the tank is engineered to hold up to roughly 30,107 pounds of contents, which is what lets it run heavy fertilizer blends and other dense liquids rather than just water. The practical takeaway for a haul tank: size your trailer, axle rating, and freight quote to that loaded number near 30,107 pounds, not the lighter water weight. Match your fluid's specific gravity to the 1.9 ceiling before you fill, and use the Tank Sizing Calculator and Tank Sizing Guide to confirm your volume and weight math. The frame footprint sits 71 by 130 inches, so plan your pad, trailer deck, or skid space around that before delivery. Review the technical drawing on this page for fitting locations and frame detail; the pack ships without a fixed fitting schedule, so confirm your layout with us before you order.
Chemical compatibility
This is a polyethylene tank. The resin is recorded as HDLPE but is not yet final, so we confirm HDLPE versus XLPE in writing before any chemical goes into service. With the 1.9 SG rating it can carry a wide range of dense chemistries, and the fitting_material and gasket_material listed below are the wetted-part spec you order to. Per the OEM chemical-resistance chart (always concentration- and temperature-specific), compatible chemicals include acetic acid (60%, PP/PVC fittings, EPDM gaskets), aluminum sulfate (50%, PVC, EPDM), calcium chloride (40%, PVC, EPDM), DEF (32.5%, 316SS, EPDM), ethylene glycol (100%, PVC, EPDM), ferric chloride (50%, PVC, EPDM), ferric sulfate (60%, PVC, EPDM), ferrous sulfate (20%, PVC, EPDM), hydrochloric acid (37%, PVC, Viton), hydrofluoric acid (48%, PP/PVC, Viton), hydrofluosilicic acid (26%, PP/PVC, Viton), hydrogen peroxide (50%, PVC, Viton), magnesium chloride (30%, PVC, EPDM), peracetic acid (30%, 316SS, Aflas), phosphoric acid (85%, PVC, Viton), polyaluminum chloride (PVC, EPDM), potassium carbonate (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 (30%, PVC, EPDM), sodium hypochlorite (<16.5%, PVC, Viton), sodium thiosulfate (40%, PVC, EPDM), sulfuric acid (98%, CPVC, Viton), urea solution (50%, PP/PVC, EPDM), zinc orthophosphate (PP/316SS, EPDM), and ozonated water (up to 10 PPM, PVC, EPDM). The wetted parts matter as much as the tank wall: sodium hypochlorite, the acids, and peroxide call for Viton or Aflas gaskets, while DEF and zinc orthophosphate want 316SS or PP. See the full chemical compatibility reference and verify your exact concentration and temperature before committing.
The mistake to avoid
The costly error on a haul tank like this is treating the 1.9 SG rating and the resin as interchangeable with chemical approval. The 1.9 rating tells you the wall can carry the weight of a dense fluid; it does not by itself certify the resin against attack from that fluid, which is why we confirm the HDLPE-versus-XLPE resin in writing before chemical service. For dense fertilizer blends, also watch for stratification in a horizontal body, where heavier components settle and salt out along the bottom; our guide on fertilizer-blend tank stratification covers the mixing protocol and field checks that catch an off-spec tank before the spreader runs. If you are speccing this as an applicator or transport unit, our writeups on applicator and leg tanks for fertilizer and portable utility tanks under 49 CFR 173.5 explain the DOT and non-roadable-trailer scope.
This tank ships by LTL freight from the Enduraplas plant in Neche, ND, and freight is quoted live to your ZIP. Get your delivered number with our Freight Cost Estimator, or call 866-418-1777 and we will confirm fitting layout, resin, and the best routing for your load.
