The Enduraplas 200 Gallon Green Horizontal Leg Tank is a haul-built polyethylene tank rated to a 1.9 specific gravity, made to ride low and stable on a trailer or applicator frame while you move dense liquid down a field road. Dimensions are H 27" x W 47" x L 55", giving a 47 x 55 inch footprint that keeps the center of gravity down where you want it. The green polyethylene body shrugs off UV and farm-chemical exposure, and the 1.9 SG rating means this is a 200 gallon tank built for liquids far heavier than water - fertilizer blends, brine, DEF, and dense acids.
Will it handle my load?
Full of water this tank carries about 1,668 lbs; its maximum rated contents weight is 3,169 lbs. That delta is the whole point of a 1.9-SG haul tank - a full dense-liquid fill adds roughly 1,500 lbs over a water fill, so your trailer, axle, and tie-downs must be rated to about 3,169 lbs of contents plus the tank and frame, not the water number. Run your liquid's density and volume through our Tank Sizing Calculator before you load, and the Tank Sizing Guide walks through how weight, footprint, and trailer rating come together. Because this is a horizontal leg tank built for transport, mounting it to a properly rated frame matters as much as the tank itself - our guide on applicator and leg tanks for fertilizer covers the DOT non-roadable-trailer scope for farm fleet use, and the portable utility tank classification guide covers the 49 CFR agricultural exemption.
Chemical compatibility
This tank carries a 1.9 SG rating, which is what lets it hold the dense chemistries lighter tanks cannot. The resin grade is listed as HDLPE but is not yet fully confirmed - verify HDLPE vs XLPE before putting any aggressive chemical into service, since crosslinked polyethylene behaves differently with certain acids. Everything below comes from the OEM chemical-resistance chart and is concentration- and temperature-specific; always match the chart to your exact conditions. This makes the tank a strong fit for fertilizer and brine work - calcium chloride (40%, PVC, EPDM), magnesium chloride (30%, PVC, EPDM), potassium carbonate (50%, PVC, EPDM), urea solution (50%, PP/PVC, EPDM), and DEF (32.5%, 316SS fittings, EPDM) - as well as a wide range of process chemistries.
Verified compatible chemistries also include acetic acid (60%, PP/PVC, EPDM), aluminum sulfate (50%, PVC, EPDM), ethylene glycol (100%, PVC, EPDM), ferric chloride (50%, PVC, EPDM), ferric sulfate (60%, PVC, EPDM), ferrous sulfate (20%, PVC, EPDM), peracetic acid (30%, 316SS, Aflas), polyaluminum chloride (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 thiosulfate (40%, PVC, EPDM), zinc orthophosphate (PP/316SS, EPDM), and ozonated water (up to 10 PPM, PVC, EPDM).
Several aggressive chemistries demand Viton gaskets rather than EPDM - hydrochloric acid (37%, PVC, Viton), hydrofluoric acid (48%, PP/PVC, Viton), hydrofluosilicic acid (26%, PP/PVC, Viton), hydrogen peroxide (50%, PVC, Viton), phosphoric acid (85%, PVC, Viton), sodium hypochlorite (under 16.5%, PVC, Viton), and sulfuric acid (98%, which needs CPVC fittings, not PVC, with Viton). Running an EPDM gasket on a Viton-rated acid will fail fast, so match gasket elastomer and fitting metallurgy to the chemistry. See our full chemical compatibility resource for concentration and temperature limits.
The mistake to avoid
The single biggest error with a dense-liquid leg tank is treating the SG rating and the fitting spec as suggestions. This tank ships with fittings open to configuration - call 866-418-1777 to spec the bulkhead and outlet to your exact chemistry, using the fitting and gasket materials called out above. The second trap is stratification: heavy fertilizer blends can salt out and thermally layer in transport, throwing off your application rate before the spreader runs. Our deep dive on fertilizer-blend tank stratification covers the mixing protocols and field checks that catch a stratified tank before it costs you a pass.
This 200 gallon horizontal leg tank ships LTL freight from Neche, ND, quoted live to your ZIP. Get a number with our Freight Cost Estimator, or call 866-418-1777 to talk through your haul setup, mounting, and fitting selection with someone who knows these tanks.
