The Enduraplas 150 Gallon White Horizontal Leg Tank (SKU THF00150W) is a 150-gallon natural white polyethylene horizontal leg tank built for haul-and-apply work where the load rides flat on a trailer or truck bed. It measures 28 inches high, 41 inches wide, and 46 inches long, giving you a stable 41.0 x 46.0-inch footprint and a low center of gravity that holds steady on the move. The molded legs let the tank sit and strap down without a custom cradle, which is why this horizontal leg tank pattern is a workhorse for field nurse loads, water hauling, and chemical transfer.
Will it work for your load
Capacity is 150 gallons. Full of water (specific gravity 1.0) the contents weigh about 1,251 lb; the tank carries a 1.9 specific gravity rating, so its maximum rated contents weight is roughly 2,377 lb. Read that rating for what it is: a mechanical weight-carrying number, telling you the wall and legs are built to hold liquids up to about 1.9 SG, heavier than water. It is not a blanket chemical clearance, which is a separate resin-and-temperature question covered below. What it does mean for you is load math: the tank plus a 2,377 lb load is what your trailer, axle, and tie-downs must carry, so confirm those ratings before you fill. To match gallons to your job, run the Tank Sizing Calculator or read the Tank Sizing Guide. See the technical drawing on this page for fitting and port locations.
Chemical compatibility
This tank is molded polyethylene rated to a 1.9 specific gravity. The resin grade is recorded only tentatively in our data, so confirm whether it is HDLPE or XLPE with us before putting the tank into chemical service, especially for aggressive oxidizers where wall behavior depends on the resin. Compatibility below is drawn from the OEM chemical-resistance chart and is concentration- and temperature-specific; match it to your exact product, ambient temperature, and duty cycle, and spec your fittings and gaskets to the chemical, not just the tank. The quick-scan rule: EPDM is the default gasket for the salts, glycols, DEF, and urea; Viton is required for the acids and chlorine-bearing products; Aflas is for peracetic acid. Three liquids will not tolerate PVC fittings at all - DEF and peracetic acid need 316SS, and sulfuric acid needs CPVC.
Chemicals this tank handles, with the recommended fitting and gasket materials: Acetic Acid (60%, PP/PVC fittings, EPDM gaskets) - details; Aluminum Sulfate (50%, PVC, EPDM) - details; Calcium Chloride (40%, PVC, EPDM) - details; DEF (32.5%, 316SS, EPDM) - details; Ethylene Glycol (100%, PVC, EPDM) - details; Ferric Chloride (50%, PVC, EPDM) - details; Ferric Sulfate (60%, PVC, EPDM) - details; Ferrous Sulfate (20%, PVC, EPDM) - details; Hydrochloric Acid (37%, PVC, Viton) - details; Hydrofluoric Acid (48%, PP/PVC, Viton) - details; Hydrofluosilicic Acid (26%, PP/PVC, Viton) - details; Hydrogen Peroxide (50%, PVC, Viton) - details; Magnesium Chloride (30%, PVC, EPDM) - details; Peracetic Acid (30%, 316SS, Aflas) - details; Phosphoric Acid (85%, PVC, Viton) - details; Polyaluminum Chloride (PVC, EPDM) - details; Potassium Carbonate (50%, PVC, EPDM) - details; Potassium Hydroxide (saturated, PVC, EPDM) - details; Propylene Glycol (PP/316SS, EPDM) - details; Sodium Bisulfate (PVC/PP, EPDM) - details; Sodium Bisulfite (PVC/PP, EPDM) - details; Sodium Carbonate (30%, PVC, EPDM) - details; Sodium Hypochlorite (under 16.5%, PVC, Viton) - details; Sodium Thiosulfate (40%, PVC, EPDM) - details; Sulfuric Acid (98%, CPVC, Viton) - details; Urea Solution (50%, PP/PVC, EPDM) - details; Zinc Orthophosphate (PP/316SS, EPDM) - details; and Ozonated Water, compatible up to 10 PPM only with PVC fittings and EPDM gaskets - there is no separate reference page for it, so call 866-418-1777 to confirm your service before you order. Browse the full chemical compatibility reference before you commit to a product.
The mistake to avoid
The most common error on a horizontal leg tank rated to 1.9 SG is treating the rating as a free pass and ignoring two things: the resin confirmation and the fitting-and-gasket match. First, confirm whether the polyethylene is HDLPE or XLPE with us before you load an oxidizer like sodium hypochlorite or hydrogen peroxide. Second, watch the fitting metal: DEF (32.5%) needs 316SS, peracetic acid needs 316SS, and sulfuric acid (98%) needs CPVC - PVC fittings are inadequate for those three, no matter the gasket. Then match the gasket - EPDM for the salts and glycols, Viton for the acids and chlorine-bearing products, and Aflas for peracetic acid. A wrong fitting or gasket is the failure point, not the tank wall. If you are hauling fertilizer blends, read up on fertilizer-blend tank stratification and the scope on applicator and leg tanks for fertilizer before your first run.
This Enduraplas horizontal leg tank ships LTL freight from Neche, ND, quoted live to your ZIP. Get a freight quote in seconds with the Freight Cost Estimator, or call 866-418-1777 and we will work out the haul, the fittings, and the gasket package for your exact product.
