The Enduraplas 1200 Gallon Yellow Horizontal Sump Bottom Leg Tank (SKU THD01200Y) is a 1,200-gallon polyethylene horizontal leg tank built for mobile and stationary handling of heavy agricultural and industrial liquids. The horizontal leg design supports the tank along its full length, and the sump bottom drains toward a low point so you can pull contents down without leaving residue behind. It measures 102 inches long, 70 inches wide, and 63 inches tall. The 1.9 specific gravity rating is what sets this tank apart from a standard water-only horizontal leg tank: it is engineered to carry liquids substantially heavier than water.
Will this tank work for your liquid?
Start with weight, because that is where most leg-tank decisions go wrong. Filled with water this tank carries about 10,008 pounds, but the wall is rated to hold contents up to 19,015 pounds. That spread is the whole point of the 1.9 SG rating: you can fill it with a dense fertilizer blend, a brine, or another heavy liquid up to that weight ceiling. Do the math for your specific liquid before you fill, multiplying gallons by the weight per gallon of your product, and confirm you stay under the 19,015-pound rated contents weight. The yellow polyethylene body and the horizontal leg-tank form make it a common choice for fertilizer and chemical haul work where the tank rides on a trailer or skid. If you are unsure which capacity fits your rig, the Tank Sizing Calculator and Tank Sizing Guide walk you through it.
Chemical compatibility
This tank is rated at 1.9 specific gravity. Our records list the resin as HDLPE with a trailing question mark, so confirm whether your specific unit is HDLPE or XLPE before putting it into chemical service - the resin determines what it can safely hold. Compatibility below is drawn from the OEM chemical-resistance chart and is concentration- and temperature-specific, so match your exact conditions to the chart before committing. Where the chart pairs a fitting and gasket material, use them: many of these chemicals require the right elastomer to seal reliably. These fitting and gasket materials are recommended materials for your plumbing and seals - they are reference specs from the OEM chart, not hardware included with the tank.
The following 28 chemicals are listed as compatible with this tank's resin and SG rating: 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 (under 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). For the full picture, see our chemical compatibility resource and always verify against the OEM chart at your actual concentration and temperature.
The mistake to avoid
The costliest error on a 1.9 SG tank is treating the SG rating as a license to ignore the weight ceiling. The rating tells you the tank wall can handle dense liquids, but the 19,015-pound rated contents weight is the hard limit. A heavy product can hit that ceiling well before the tank is visually full, and overfilling a horizontal leg tank stresses the legs and the saddle structure. Just as important: do not assume the resin without confirming it. Because our resin record reads HDLPE with a question mark, settle the HDLPE-versus-XLPE question with us before you run any of the chemicals above. The wrong resin or the wrong fitting and gasket pairing is how a compatible chemical still ends up leaking.
This tank ships LTL freight from Neche, ND, the nearest named plant on record, and freight is quoted live to your ZIP. Get a number with our Freight Cost Estimator or call 866-418-1777 to confirm fit, resin, and freight before you order.
