The Enduraplas 3000 Gallon Black Horizontal Sump Bottom Leg Tank is a haul-built horizontal leg tank engineered for moving heavy, dense liquids across the farm or between sites. The defining feature is its sump bottom: the floor pitches residual liquid to a low collection point at the outlet, so you can pump down to near-empty between loads instead of leaving a heel behind in a flat-bottom tank - a real operational gain when you are offloading dense product. It holds 3,000 gallons in a black polyethylene shell rated to 1.9 specific gravity - the heavy-haul Enduraplas black horizontal leg tank build operators look for when they need transport service. It measures 130 in long, 87 in wide and 93 in high, landing an 87.0 x 130.0 in footprint on the trailer or skid you mount it to.
Will this tank work for your load?
Plan around the loaded weight, not the empty tank. At its maximum rated contents weight this tank is built to handle 47,538 lb; filled with plain water it carries about 25,020 lb. That ~22,500 lb spread is the entire point of the 1.9 specific gravity rating - it lets you haul liquids far denser than water up to the 1.9 SG ceiling. Spec your trailer, axle rating and tie-downs to the 47,538 lb maximum, not the water figure, and confirm your product's density against the 1.9 limit before you fill. Check the 93 in loaded height and 130 in length against your trailer deck and any overhead clearance on the route. If you are still settling on volume, the Tank Sizing Calculator and Tank Sizing Guide help you match capacity to your haul cycle.
Chemical compatibility
This shell is polyethylene with a 1.9 specific gravity rating, which is exactly why it suits dense chemical hauling - the 1.9 ceiling is what lets it carry 98% sulfuric acid, concentrated ferric chloride and calcium-chloride brines that would overload a 1.5 SG shell. The resin designation is not confirmed in our data, so confirm HDLPE vs XLPE with the manufacturer before committing it to chemical service - that distinction can change which chemicals are appropriate. Within the chemical-resistance chart, this build is listed compatible with the following at the noted concentrations and recommended fitting and gasket materials: Acetic Acid 60% (PP/PVC fittings, EPDM gaskets), Aluminum Sulfate 50% (PVC, EPDM), Calcium Chloride 40% (PVC, EPDM), DEF 32.5% (316SS, 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). These ratings are concentration- and temperature-specific - always verify against the chemical-resistance chart for your exact product and service temperature before filling. See our full chemical compatibility reference for detail.
The mistake to avoid
The most expensive error on a heavy-haul leg tank is matching fittings and gaskets to the tank instead of to the chemical. The shell may tolerate a product the wrong gasket cannot. Pull the exceptions out before you order parts: Viton gaskets for hydrochloric, hydrofluoric, hydrofluosilicic, hydrogen peroxide, phosphoric, sodium hypochlorite and sulfuric; Aflas for peracetic acid; CPVC for 98% sulfuric; and 316SS fittings for DEF, peracetic acid, propylene glycol and zinc orthophosphate. Defaulting to EPDM across the board because it works for most salts will cost you a leak on the aggressive loads. Pair every fitting and gasket to the chemical, not the tank.
This tank ships LTL on a freight carrier from the Enduraplas plant in Neche, ND, with freight quoted live to your ZIP. Get a number in seconds with the Freight Cost Estimator, or call 866-418-1777 to confirm fittings, freight and lead time before you order. For agricultural haul and DOT context, see our guides on applicator and leg tanks for fertilizer, portable utility tank DOT classification, and fertilizer-blend tank stratification.
