The Enduraplas 2800 Gallon Yellow Horizontal Sump Bottom Leg Tank (SKU THD02800Y) is a polyethylene horizontal leg tank built to haul dense agricultural and industrial liquids over the road and bleed off cleanly through its sump bottom. Here is the number that should drive your decision: filled with 2,800 gallons of plain water this tank carries about 23,352 lb, but at its full 1.9 specific-gravity rating the contents can reach roughly 44,369 lb. That ~21,000 lb spread is what sets your trailer, axle, and tie-down spec, because a 1.9 SG fertilizer or brine fills the same volume as water but weighs nearly twice as much. At 145 inches long, 97 inches wide, and 75 inches tall, it sits on a wide 97 x 145 inch footprint, making it a common pick for horizontal sump tank, leg tank, and applicator-style hauling builds.
Will it work for your job?
Size your load by weight, not gallons. Spec the chassis and restraints off the rated 44,369 lb ceiling, not the 23,352 lb water number, or a full load of dense product will overload the rig. Run the math on the Tank Sizing Calculator and the Tank Sizing Guide before you commit to a chassis. The sump bottom helps you drain and rinse between products, which is what you want when the tank rides on a non-roadable trailer or applicator frame. One gap to close before you order: fittings and gaskets are not specified in our records for this tank, so confirm the outlet and sump fitting size and material with us at 866-418-1777 rather than assuming hardware ships with it.
Chemical compatibility
This is a 1.9 specific-gravity polyethylene tank. Our records list the resin as HDLPE but with a pending confirmation flag, so before you commit any chemical above plain water or glycol, confirm whether your unit is HDLPE or another polyethylene grade with us at 866-418-1777. The SG rating governs weight, not chemical resistance; those are two separate specs, and conflating them is the classic and costly error. Compatibility always depends on concentration and temperature, so check the OEM chemical-resistance chart for your exact product and conditions.
The common case on this list is PVC fittings with EPDM gaskets, and that pairing covers the bulk of the products: Aluminum Sulfate at 50%, Calcium Chloride at 40%, Ethylene Glycol at 100%, Ferric Chloride at 50%, Ferric Sulfate at 60%, Ferrous Sulfate at 20%, Magnesium Chloride at 30%, Polyaluminum Chloride, Potassium Carbonate at 50%, Potassium Hydroxide saturated, Sodium Carbonate at 30%, and Sodium Thiosulfate at 40%. A few products take PP or PP/PVC with EPDM, including Acetic Acid at 60%, Urea Solution at 50%, Sodium Bisulfate, and Sodium Bisulfite, while Propylene Glycol and Zinc Orthophosphate call for PP/316SS with EPDM.
The exceptions are where wrong hardware fails. Strong acids and oxidizers on this list demand a Viton gasket, not EPDM: Hydrochloric Acid at 37%, Hydrofluoric Acid at 48% and Hydrofluosilicic Acid at 26% (both PP/PVC with Viton), Hydrogen Peroxide at 50%, Phosphoric Acid at 85%, Sodium Hypochlorite under 16.5%, and Sulfuric Acid at 98% on CPVC with Viton. DEF at 32.5% requires 316SS metal fittings with EPDM, not PVC, and Peracetic Acid at 30% needs 316SS with an Aflas gasket. Ozonated Water up to 10 PPM runs PVC with EPDM. Match the listed fitting and gasket to your chemical, and start at our chemical compatibility reference.
The mistake to avoid
The most expensive error on a tank like this is treating the 1.9 SG rating and the resin flag as fine print. Spec your restraints off the water weight and a full load of dense fertilizer or acid overloads the rig; assume the wrong polyethylene grade and an aggressive chemical can attack the wall over time. Confirm the resin, size to the rated 44,369 lb, and pick fittings and gaskets off the OEM chart, not off habit. For general DOT and application context on leg-style hauling tanks, our references on applicator and leg tanks for fertilizer, portable utility tanks and DOT classification, and fertilizer-blend stratification are worth reading first. See the technical drawing on this page for the exact dimensions.
This tank ships LTL freight from the Enduraplas plant in Neche, ND, quoted live to your ZIP. Get a freight estimate with our Freight Cost Estimator, or call 866-418-1777 to talk through your load, fittings, and trailer setup before you order.
