The Enduraplas 1900 Gallon Green Horizontal Leg Tank (SKU THF01900G) is a 130-inch by 71-inch polyethylene haul tank built to ride on a trailer or skid and move liquid down the road. The leg-tank profile sits low and wide on a 71.0 x 130.0-inch footprint, and the green poly body carries a 1.9 specific-gravity rating - the high-SG construction that separates a real chemical and fertilizer haul tank from a water-only barrel. Plan your trailer for up to roughly 30,107 lb of contents at the full 1.9 SG rating, not the 15,846 lb water figure. Whether you searched for an Enduraplas tank, a horizontal tank, a leg tank, or simply a horizontal leg tank to pull behind a rig, this is the 1900-gallon size in that family.
Will it work for your load?
Capacity is 1,900 gallons. Filled with water the contents alone weigh roughly 15,846 lb; at the tank's full 1.9 SG rating the maximum rated contents weight climbs to about 30,107 lb. That gap is the whole story: a heavier-than-water fluid - most fertilizers, brines, and acids - pushes you toward that upper number, so size your trailer axles, suspension, and tow vehicle to the actual liquid you are hauling, not to the water figure. Overall dimensions are 65 in high, 71 in wide, and 130 in long. At 1.9 SG this is already the highest-density poly rating offered in this family - there is no heavier-rated step up - so spec the trailer to the 30,107 lb worst case and you are covered. Use the on-page technical drawing for fitting placement and leg geometry, and run your numbers through our Tank Sizing Calculator and Tank Sizing Guide before you commit to a hauling setup.
Chemical compatibility
This tank is molded from high-density linear polyethylene (HDLPE) and rated to 1.9 specific gravity. The resin code in our data still carries a question mark, so treat this as a gate, not a footnote: confirm HDLPE versus crosslinked (XLPE) with us before putting any aggressive chemical into service - the two resins behave differently against strong oxidizers and acids, and a buyer hauling sulfuric 98% or sodium hypochlorite should not commit until that is settled. Always match the fitting and gasket material to the fluid, and verify every choice against the OEM chemical-resistance chart, which is concentration- and temperature-specific.
Two quick rules make speccing the gasket and fitting kit a one-time job. First, gaskets: the strong oxidizers and acids - hydrochloric (37%), hydrofluoric (48%), hydrofluosilicic (26%), hydrogen peroxide (50%), phosphoric (85%), sodium hypochlorite (<16.5%), and sulfuric (98%) - need Viton, while peracetic acid (30%) is the lone outlier requiring Aflas; everything else on the list runs on EPDM. Second, fittings: most fluids use PVC or PP, but four call for stainless instead of plastic - DEF (32.5%), peracetic acid (30%), propylene glycol, and zinc orthophosphate all need 316SS, so do not order PVC fittings for a DEF haul.
Chemicals this tank can carry, with the fitting and gasket materials to pair with each, include:
- Acetic Acid (60%) - PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate (50%) - PVC fittings, EPDM gaskets
- Calcium Chloride (40%) - PVC fittings, EPDM gaskets
- DEF (32.5%) - 316SS fittings, EPDM gaskets
- Ethylene Glycol (100%) - PVC fittings, EPDM gaskets
- Ferric Chloride (50%) - PVC fittings, EPDM gaskets
- Ferric Sulfate (60%) - PVC fittings, EPDM gaskets
- Ferrous Sulfate (20%) - PVC fittings, EPDM gaskets
- Hydrochloric Acid (37%) - PVC fittings, Viton gaskets
- Hydrofluoric Acid (48%) - PP/PVC fittings, Viton gaskets
- Hydrofluosilicic Acid (26%) - PP/PVC fittings, Viton gaskets
- Hydrogen Peroxide (50%) - PVC fittings, Viton gaskets
- Magnesium Chloride (30%) - PVC fittings, EPDM gaskets
- Peracetic Acid (30%) - 316SS fittings, Aflas gaskets
- Phosphoric Acid (85%) - PVC fittings, Viton gaskets
- Polyaluminum Chloride - PVC fittings, EPDM gaskets
- Potassium Carbonate (50%) - PVC fittings, EPDM gaskets
- Potassium Hydroxide (saturated) - PVC fittings, EPDM gaskets
- Propylene Glycol - PP/316SS fittings, EPDM gaskets
- Sodium Bisulfate - PVC/PP fittings, EPDM gaskets
- Sodium Bisulfite - PVC/PP fittings, EPDM gaskets
- Sodium Carbonate (30%) - PVC fittings, EPDM gaskets
- Sodium Hypochlorite (<16.5%) - PVC fittings, Viton gaskets
- Sodium Thiosulfate (40%) - PVC fittings, EPDM gaskets
- Sulfuric Acid (98%) - CPVC fittings, Viton gaskets
- Urea Solution (50%) - PP/PVC fittings, EPDM gaskets
- Zinc Orthophosphate - PP/316SS fittings, EPDM gaskets
- Ozonated Water (up to 10 PPM) - PVC fittings, EPDM gaskets
For the full breakdown across these and other fluids, see our chemical compatibility reference and confirm concentration and temperature for your exact application.
The mistake to avoid
The number that catches people on this tank is specific gravity. The 15,846 lb water-weight figure looks manageable, but most loads bound for a 1.9 SG tank are heavier than water - hauling a dense fertilizer blend or a concentrated acid on the wrong gasket spec, or under-rating your trailer for the real contents weight, is how a road-going leg tank gets into trouble. Pair the correct fitting and gasket to the fluid, respect the SG rating, and confirm HDLPE versus XLPE before any chemical service. For fertilizer-haul specifics, our guides on applicator and leg tanks for fertilizer, loaf-style portable utility tanks and 49 CFR exemptions, and fertilizer-blend tank stratification are worth a read.
This tank ships LTL freight from the Neche, ND plant, with freight quoted live to your ZIP. Get an exact number with our Freight Cost Estimator or call 866-418-1777 to lock in your order.
