The Enduraplas 1100 Gallon Yellow Horizontal Leg Tank (SKU THF01000Y) is a polyethylene horizontal leg tank built for hauling and field transfer, where the load rides low on molded legs that keep the vessel stable on a trailer or skid. It measures 94 inches long by 60 inches wide by 63 inches tall for a 60.0 x 94.0 inch footprint, and it carries a 1.9 specific gravity rating - at or near the top of the polyethylene range - which is why this tank handles dense agricultural and chemical loads that lighter-rated tanks cannot. Filled with water it holds 1,100 gallons at roughly 9,174 pounds; at its full 1.9 SG rating the contents can weigh up to 17,431 pounds. Size your trailer, axles, hitch, and suspension to that 17,431 lb rated load, not the 9,174 lb water weight.
Will it work for your job?
This is a transport-and-transfer tank in the classic horizontal leg-tank form: the long horizontal barrel and molded legs lower the center of gravity for road and field handling, which is exactly what people mean when they search for an Enduraplas horizontal leg tank or a yellow horizontal tank for haul duty. No standard fitting or outlet configuration is specified for this SKU, so confirm the vent, fill, and outlet plumbing against the technical drawing on this page (or by phone) before you order - do not assume a fitting kit is included. To match capacity and loaded weight to your actual rig, run the numbers with our Tank Sizing Calculator and the Tank Sizing Guide and spec your trailer and axles to the full 17,431 lb at 1.9 SG. If you are blending or hauling fertilizer, layering and salting-out physics matter - the fertilizer-blend stratification guide covers mixing protocol and field verification, and our coverage of applicator and leg tanks for fertilizer plus portable utility tanks and the 49 CFR 173.5 agricultural exemption explains the DOT classification questions that come up with on-road farm use.
Chemical compatibility
Before you commit this tank to chemical service, settle the resin question: it is listed as HDLPE with a question mark, so confirm HDLPE versus crosslinked polyethylene (XLPE) for THF01000Y, because the two resins do not share the same chemical-resistance profile and resin choice gates the entire chart below. The good news on rating: at 1.9 SG this tank sits at the top of the poly range and exceeds the density of every chemical on the chart - for example 98% sulfuric acid runs about 1.84 and 40% calcium chloride about 1.4 - so you are not under-rated for any listed service, and there is no higher-SG tank to step up to. Match fittings and gaskets to the chemical; the materials below come from the OEM chemical-resistance chart and are concentration- and temperature-specific, so verify your exact conditions first.
At this tank's 1.9 SG rating, the OEM chart shows compatibility with the following, with the recommended fitting and gasket materials:
- Acetic Acid (60%) - PP/PVC fittings, EPDM gasket
- Aluminum Sulfate (50%) - PVC fittings, EPDM gasket
- Calcium Chloride (40%) - PVC fittings, EPDM gasket
- DEF (32.5%) - 316SS fittings, EPDM gasket
- Ethylene Glycol (100%) - PVC fittings, EPDM gasket
- Ferric Chloride (50%) - PVC fittings, EPDM gasket
- Ferric Sulfate (60%) - PVC fittings, EPDM gasket
- Ferrous Sulfate (20%) - PVC fittings, EPDM gasket
- Hydrochloric Acid (37%) - PVC fittings, Viton gasket
- Hydrofluoric Acid (48%) - PP/PVC fittings, Viton gasket
- Hydrofluosilicic Acid (26%) - PP/PVC fittings, Viton gasket
- Hydrogen Peroxide (50%) - PVC fittings, Viton gasket
- Magnesium Chloride (30%) - PVC fittings, EPDM gasket
- Peracetic Acid (30%) - 316SS fittings, Aflas gasket
- Phosphoric Acid (85%) - PVC fittings, Viton gasket
- Polyaluminum Chloride - PVC fittings, EPDM gasket
- Potassium Carbonate (50%) - PVC fittings, EPDM gasket
- Potassium Hydroxide (saturated) - PVC fittings, EPDM gasket
- Propylene Glycol - PP/316SS fittings, EPDM gasket
- Sodium Bisulfate - PVC/PP fittings, EPDM gasket
- Sodium Bisulfite - PVC/PP fittings, EPDM gasket
- Sodium Carbonate (30%) - PVC fittings, EPDM gasket
- Sodium Hypochlorite (<16.5%) - PVC fittings, Viton gasket
- Sodium Thiosulfate (40%) - PVC fittings, EPDM gasket
- Sulfuric Acid (98%) - CPVC fittings, Viton gasket
- Urea Solution (50%) - PP/PVC fittings, EPDM gasket
- Zinc Orthophosphate - PP/316SS fittings, EPDM gasket
- Ozonated Water (up to 10 PPM) - PVC fittings, EPDM gasket
For the full chart and to check a chemical not listed here, see our chemical compatibility guide. The most common mistake on a tank like this is matching the gasket to the wrong service: most listed chemicals run EPDM, but five acids (hydrochloric, phosphoric, hydrogen peroxide, sodium hypochlorite, sulfuric) require Viton and peracetic acid requires Aflas - these are not interchangeable, and the wrong elastomer fails fast even when the polyethylene shell is fine. Note too that sulfuric acid is the lone CPVC service on the chart, so it cannot share a PVC fitting kit with the other Viton acids.
Freight
This tank ships LTL freight from the Enduraplas plant in Neche, ND, with the cost quoted live to your ZIP code - get a number in seconds with our Freight Cost Estimator. Because the loaded weight can reach 17,431 pounds at full SG, confirm your receiving site can handle the delivery and unload. Questions on fittings, freight, or matching this tank to a specific chemical or hauling job? Call us at 866-418-1777 and we will spec it with you.
