The Enduraplas 150 Gallon Black Horizontal Sump Bottom Leg Tank is a black polyethylene leg tank built for transport and field-distribution duty. It holds 150 gallons, measures 33 inches high by 41 inches wide by 46 inches long, and carries a 1.9 specific gravity rating, which is the heavy-duty end of the leg-tank line. The sump-bottom design shapes the low point of the tank to assist draining toward the outlet. If you searched for an Enduraplas 150 gallon black horizontal leg tank, this is the configuration: a compact 41 by 46 inch footprint sized to sit on a skid or trailer deck rather than a long horizontal cylinder.
Will it work for your load?
Sizing the support is the part most buyers underestimate. Full of water this tank carries about 1,251 pounds; at its full 1.9 specific gravity rating it can carry up to roughly 2,377 pounds of contents. Build the trailer deck, tie-downs, and any skid framing around the loaded weight, not the empty tank, and confirm the 41 by 46 inch footprint clears your deck rails and band straps. Use the Tank Sizing Calculator and Tank Sizing Guide to match capacity to your route and pump rate before you commit. For dense fertilizer blends, the guide on tank stratification and salting-out covers how density-driven layering can throw your spreader off-spec. For DOT and trailer-classification questions on agricultural hauling, the guides on applicator and leg tanks for fertilizer and loaf-style portable utility tanks under 49 CFR 1735 walk through the non-roadable trailer scope and the agricultural exemption. See the technical drawing on this page for the full dimensional layout.
Chemical compatibility
This is a black polyethylene tank with a 1.9 specific gravity rating, and the resin is recorded as HDLPE, though that record is unconfirmed. Confirm whether your tank is HDLPE or XLPE with the manufacturer before any chemical service, because the entire aggressive-chemical list below hinges on resin type and cross-linked resin handles a different set of liquids. The materials named below are the recommended wetted-component (fitting and gasket) materials you must source and verify for each chemical, not necessarily what ships installed on this tank. Always check the OEM chemical-resistance chart for your exact concentration and service temperature before filling.
At the 1.9 rating this tank can carry dense and aggressive liquids. Compatible chemicals from the chart include acetic acid (60%) with PP/PVC fittings and EPDM gaskets; aluminum sulfate (50%), calcium chloride (40%), ferric chloride (50%), ferric sulfate (60%), ferrous sulfate (20%), magnesium chloride (30%), potassium carbonate (50%), potassium hydroxide (saturated), sodium carbonate (30%), sodium thiosulfate (40%), ethylene glycol (100%), polyaluminum chloride, sodium bisulfate and sodium bisulfite, all on PVC or PVC/PP fittings with EPDM gaskets. Propylene glycol and zinc orthophosphate use PP/316SS fittings with EPDM. Acids that demand Viton gaskets include hydrochloric acid (37%), hydrofluoric acid (48%), hydrofluosilicic acid (26%), hydrogen peroxide (50%), phosphoric acid (85%), sodium hypochlorite (under 16.5%) and sulfuric acid (98%, CPVC fittings). DEF (32.5%) calls for 316SS fittings and EPDM; peracetic acid (30%) needs 316SS fittings with Aflas gaskets; urea solution (50%) uses PP/PVC with EPDM; and ozonated water up to 10 PPM uses PVC fittings with EPDM. See the full chemical compatibility reference and confirm fitting and gasket materials for your specific application.
The mistake to avoid
The most common error on a tank like this is matching the fitting and gasket to the chemical's name instead of its concentration. Sodium hypochlorite, hydrochloric acid, and hydrogen peroxide each require Viton rather than the EPDM that works for the salts and glycols on this list, and sulfuric acid at 98% steps up to CPVC fittings entirely. Pick the wrong elastomer and the seal fails long before the tank does. Equally important: do not assume this tank is rated for potable or food-grade service from the chemical list above, and resolve the HDLPE-versus-XLPE resin question with the manufacturer before any aggressive-chemical fill.
This tank ships LTL freight from the Enduraplas plant in Neche, ND, with freight quoted live to your ZIP code. Get your freight quote on the Freight Cost Estimator, or call 866-418-1777 to confirm fittings, sizing, and chemical service for your application before you order.
