The Enduraplas 100 Gallon Yellow Horizontal Leg Tank (SKU THF00100Y) is a 100-gallon polyethylene leg tank built to haul and field-apply liquids that water-rated tanks can't handle. It rides flat on its integrated legs on a trailer, skid, or truck bed, with a loaded profile of 21 in high by 41 in wide by 46 in long - the 21 in height is your controlling dimension under a low rack or cover, and the 41 x 46 in footprint is the deck space it claims. The bright yellow shell keeps the tank visible in the field, a practical detail for any 100 gallon tank that moves between sites. Rated to 1.9 specific gravity, it carries dense agricultural and industrial chemistries, not just water.
Will it work for your job?
This is a horizontal leg tank, not an upright storage vessel - the geometry is built for transport and dispensing. Filled with water it weighs about 834 lb, but the controlling number is the 1,585 lb max rated contents weight. Because the polyethylene is rated to 1.9 specific gravity, this tank is contents-weight-limited well before it's volume-limited: for liquids heavier than roughly 1.58 SG you'll hit 1,585 lb before you reach a full 100 gallons, so size your load by weight, not by gallons alone. Run your liquid and capacity through our Tank Sizing Calculator and the Tank Sizing Guide before you buy. One note before ordering: the as-shipped fitting and bulkhead configuration for THF00100Y is not specified in our record, so call to confirm port locations and sizes for your application.
Chemical compatibility
This is a polyethylene vessel with a 1.9 specific gravity rating. The exact resin grade is not confirmed in our record - it is likely high-density linear polyethylene (HDLPE), but confirm HDLPE versus XLPE before any chemical service, because the two resins behave differently against aggressive media and that choice is what decides service life on the harsh end of the list below (sulfuric acid at 98%, hydrochloric acid at 37%, sodium hypochlorite). Compatibility is drawn from the OEM chemical-resistance chart and is concentration- and temperature-specific; verify your exact concentration and operating temperature against that chart, and treat the listed fitting and gasket materials as what survives the chemical, not necessarily what ships on the tank.
Within the 1.9 SG rating, this tank handles a broad slate: Acetic Acid (60%, PP/PVC fittings, EPDM gasket), Aluminum Sulfate (50%, PVC, EPDM), Calcium Chloride (40%, PVC, EPDM), DEF (32.5%, 316SS fittings, 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 - no dedicated page yet). DEF at 32.5% is a common haul for this tank; pair it with 316SS fittings and keep the system clean. Note that DEF is a 32.5% urea solution and is listed separately from the higher-strength Urea Solution at 50% - related chemistries, different concentrations, so match your fittings to the one you actually run. For the full picture across any chemical, see our chemical compatibility reference and match the gasket and fitting material to your exact media.
Field and regulatory notes
The most common mistake on a tank like this is treating the 1.9 SG rating as a license to ignore weight: at full load the contents alone can reach 1,585 lb, so confirm your trailer, skid, and tie-downs are rated before the first haul. If you're running this on a non-roadable trailer or under an agricultural exemption, our guides on applicator and leg tanks for fertilizer, portable utility tanks and the 49 CFR 173.5 agricultural exemption, and fertilizer-blend tank stratification walk through DOT classification and the mixing protocols that keep your load on-spec.
This tank ships LTL freight from Neche, ND, quoted live to your ZIP. Get an exact number in seconds with our Freight Cost Estimator, or call 866-418-1777 to talk through fittings, freight, and the right tank for your application.
