The Enduraplas 1200 Gallon Green Horizontal Leg Tank is a self-supporting polyethylene haul tank built for moving liquid in volume. Molded with integrated leg supports on a 70 x 102-inch footprint, it stands 59 inches tall and holds a true 1,200 gallons. Full of water it carries about 10,008 pounds, and at its 1.9 specific gravity rating it is engineered to haul up to roughly 19,015 pounds of contents. That spread between the two numbers is the whole point of this tank: it lets you run heavy liquids that would overstress a lighter-rated horizontal. See the technical drawing on this page for overall dimensions and fitting locations before you build a skid or mount.
Will it work for your haul?
This is a horizontal leg tank, so it sits low and stable for transport rather than standing upright for gravity feed. The 1.9 SG rating is high for a poly tank, which is what makes it a genuine fertilizer and liquid-haul workhorse instead of a water-only vessel. Confirm your loaded weight against the 19,015-pound maximum rated contents figure: that ceiling assumes the wall thickness was molded for 1.9 SG service, so a denser load is the one spec you do not push past. Bulkhead and fitting locations are confirmed per order, so tell us your plumbing layout when you call. Use the Tank Sizing Calculator and the Tank Sizing Guide to match this 1,200-gallon capacity and its weights to your trailer or applicator rating before you commit.
Chemical compatibility
This tank is rated to 1.9 specific gravity. Its resin is recorded as HDLPE, but the source carries a question mark - confirm HDLPE versus XLPE with us at 866-418-1777 before any chemical service, because cross-linked and linear polyethylene do not behave identically with aggressive liquids. When the resin is confirmed, the 1.9 SG body opens a wide service range. Every call below is concentration- and temperature-specific, so always confirm against the OEM's published chemical-resistance chart for your exact conditions. The most failure-relevant fact here is the gasket and hardware split: salts and glycols run on standard PVC fittings and EPDM gaskets, while the aggressive acids and oxidizers demand Viton or Aflas gaskets with CPVC or 316SS hardware. Matching the wrong gasket to the wrong acid is the most common and most preventable failure on a chemical haul tank.
EPDM gaskets, PVC-class fittings: Acetic Acid (60%, PP/PVC), Aluminum Sulfate (50%, PVC), Calcium Chloride (40%, PVC), DEF (32.5%, 316SS), Ethylene Glycol (100%, PVC), Ferric Chloride (50%, PVC), Ferric Sulfate (60%, PVC), Ferrous Sulfate (20%, PVC), Magnesium Chloride (30%, PVC), Polyaluminum Chloride (PVC, concentration per your spec - confirm), Potassium Carbonate (50%, PVC), Potassium Hydroxide (saturated, PVC), Propylene Glycol (PP/316SS, concentration per your spec - confirm), Sodium Bisulfate (PVC/PP, concentration per your spec - confirm), Sodium Bisulfite (PVC/PP, concentration per your spec - confirm), Sodium Carbonate (30%, PVC), Sodium Thiosulfate (40%, PVC), Urea Solution (50%, PP/PVC), Zinc Orthophosphate (PP/316SS, concentration per your spec - confirm), and Ozonated Water (up to 10 PPM, PVC - reference only, no dedicated page yet).
Viton or Aflas gaskets, CPVC / 316SS hardware: Hydrochloric Acid (37%, PVC, Viton), Hydrofluoric Acid (48%, PP/PVC, Viton), Hydrofluosilicic Acid (26%, PP/PVC, Viton), Hydrogen Peroxide (50%, PVC, Viton), Peracetic Acid (30%, 316SS, Aflas), Phosphoric Acid (85%, PVC, Viton), Sodium Hypochlorite (under 16.5%, PVC, Viton), and Sulfuric Acid (98%, CPVC, Viton). Start with our full chemical compatibility reference to confirm your specific liquid, concentration, and temperature.
The mistake to avoid
The single error that costs people on a high-SG haul tank is treating the 1.9 rating as a license to ignore weight math. The tank handles dense liquid, but your trailer, axles, and the applicator frame still see the full loaded weight - up to roughly 19,015 pounds of contents on top of the tank itself. Spec your transport to that number, not to the water weight. If you are running it on a farm fleet or applicator, 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 mixing protocol for exactly this kind of horizontal haul setup.
This tank ships LTL freight from Neche, ND, quoted live to your ZIP. Get an exact rate with our Freight Cost Estimator or call us at 866-418-1777 to lock in your haul tank and freight together.
