The Enduraplas 150 Gallon Black Horizontal Leg Tank is a 1.9 specific-gravity horizontal leg tank built for hauling heavy liquids on a trailer or skid. At 28 in. tall, 41 in. wide, and 46 in. long, it carries 150 gallons inside a 41.0 x 46.0 in. footprint, and the integrated legs keep the load low and stable in transit. Molded in black polyethylene, this is a horizontal leg tank engineered for fertilizer, brine, and other dense field liquids rather than potable storage.
Will it work for your application?
The 1.9 SG rating is the number that matters here. Filled with plain water, the tank holds roughly 1,251 lb; loaded to its full rated density, it is built to carry up to about 2,377 lb of contents. That headroom is why a black horizontal leg tank like this one suits heavy ag and industrial fluids that a standard 1.0 or 1.5 SG water tank cannot safely haul, and the black pigment shields contents from light for products that degrade with UV exposure. If you are matching this 150 gallon size to a sprayer, nurse trailer, or skid build, run the numbers through our Tank Sizing Calculator and review the Tank Sizing Guide before you commit. Fitting and outlet sizes are not published in this listing - port and outlet locations are shown on the technical drawing on this page, so confirm those against your plumbing from the drawing or by calling 866-418-1777 before ordering.
Chemical compatibility
This tank is molded in polyethylene with a 1.9 specific-gravity rating. The resin is listed as HDLPE but is not fully confirmed, so verify HDLPE versus XLPE with us before putting it into chemical service. Compatibility is concentration- and temperature-specific; always check the OEM chemical-resistance chart for your exact product before filling, and where a concentration is not specified below, confirm it against that chart. Based on the OEM chart, this tank can be specified for liquids including Acetic Acid (60%) with PP/PVC fittings and EPDM gaskets, Aluminum Sulfate (50%), Calcium Chloride (40%), DEF (32.5%) with 316SS fittings and EPDM gaskets, Ethylene Glycol (100%), Ferric Chloride (50%), Ferric Sulfate (60%), Ferrous Sulfate (20%), Hydrochloric Acid (37%) with PVC fittings and Viton gaskets, Hydrofluoric Acid (48%) with PP/PVC fittings and Viton gaskets, Hydrofluosilicic Acid (26%) with Viton gaskets, Hydrogen Peroxide (50%) with Viton gaskets, Magnesium Chloride (30%), Peracetic Acid (30%) with 316SS fittings and Aflas gaskets, Phosphoric Acid (85%) with Viton gaskets, Polyaluminum Chloride (confirm concentration), Potassium Carbonate (50%), Potassium Hydroxide (saturated), Propylene Glycol (confirm concentration), Sodium Bisulfate (confirm concentration), Sodium Bisulfite (confirm concentration), Sodium Carbonate (30%), Sodium Hypochlorite (<16.5%) with Viton gaskets, Sodium Thiosulfate (40%), Sulfuric Acid (98%) with CPVC fittings and Viton gaskets, Urea Solution (50%), Zinc Orthophosphate (confirm concentration), and ozonated water up to 10 PPM - an oxidizer that calls for the same PVC/Viton care as hypochlorite and peroxide. Match your fitting and gasket materials to the chemical, not just the tank, and start from our full chemical compatibility reference.
The mistake to avoid
The costliest error on a tank like this is filling it to volume without respecting the SG math. A 1.9 SG rating means the shell and legs are designed for a contents weight of roughly 2,377 lb, not unlimited density - confirm your product's specific gravity stays at or below 1.9, and if it runs higher you need a heavier-rated tank. The second mistake is pairing the wrong hardware: DEF and peracetic acid require 316SS, sulfuric acid needs CPVC, and several acids call for Viton over EPDM. Use the chart above as your guide, but verify each connection against the OEM chemical-resistance data and the confirmed resin before service. If you are spec'ing this for fertilizer transport, our guides on applicator and leg tanks for fertilizer, portable utility tanks and DOT classification, and fertilizer-blend tank stratification cover the field details that catch buyers off guard.
This horizontal leg tank ships LTL freight from the Enduraplas plant in Neche, ND, with the rate quoted live to your ZIP - shipping from North Dakota is the biggest variable in your freight cost, so price it early. Get an exact rate with our Freight Cost Estimator, or call 866-418-1777 to size, spec the fittings, and confirm the resin before you order.
