The Enduraplas 100 Gallon White Horizontal Sump Bottom Leg Tank (SKU THD00100W) is a 100-gallon transport-and-storage tank molded in natural white polyethylene with a 1.9 specific gravity rating, built to ride low on a skid, trailer, or pad. The integrated legs keep it stable without a separate cradle, and at 27 inches tall, 41 inches wide, and 46 inches long it sits on a 41.0 x 46.0 inch footprint - a low center of gravity that handles well when this 100 gallon horizontal leg tank is moving on a non-roadable utility trailer. Outlet and sump placement are shown on the technical drawing on this page.
Will it work for your job?
Full of water this tank carries about 834 pounds, and the polyethylene wall is rated for contents up to 1,585 pounds. That 1,585 pound figure is the 1.9 specific gravity rating applied to a full 100-gallon load (1.9 x 834), so the two numbers reinforce each other - 1.9 SG is the ceiling, the heaviest poly rating for this family, which is what lets you run liquids denser than water without overloading the shell. To size your trailer and tie-downs, take your liquid's specific gravity, multiply by the full water weight, and confirm you stay under 1,585 pounds. Run the math against your rig with the Tank Sizing Calculator and the Tank Sizing Guide before you load. Outlet, sump, and leg geometry - and the fitting and outlet sizes the tank ships with - are detailed on the technical drawing on this page; call 866-418-1777 to confirm fitting sizes before you order matching hardware.
Chemical compatibility
This tank is polyethylene with a 1.9 specific gravity rating. The resin is recorded as HDLPE with a question mark in our data, so confirm HDLPE versus XLPE construction with us before putting this tank into chemical service - the two cross-link differently and that affects long-term resistance. The 1.9 SG rating gives you real headroom for dense liquids, but every fitting and gasket has to match the chemical, not just the tank. The following are compatible per the OEM chemical-resistance chart at the listed concentrations, and the chart is concentration- and temperature-specific - read it for your exact conditions:
- Acetic Acid 60% - PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate 50% - PVC fittings, EPDM gaskets
- Calcium Chloride 40% - PVC fittings, EPDM gaskets
- DEF 32.5% - 316SS fittings, EPDM gaskets
- Ethylene Glycol 100% - PVC fittings, EPDM gaskets
- Ferric Chloride 50% - PVC fittings, EPDM gaskets
- Ferric Sulfate 60% - PVC fittings, EPDM gaskets
- Ferrous Sulfate 20% - PVC fittings, EPDM gaskets
- Hydrochloric Acid 37% - PVC fittings, Viton gaskets
- Hydrofluoric Acid 48% - PP/PVC fittings, Viton gaskets
- Hydrofluosilicic Acid 26% - PP/PVC fittings, Viton gaskets
- Hydrogen Peroxide 50% - PVC fittings, Viton gaskets
- Magnesium Chloride 30% - PVC fittings, EPDM gaskets
- Peracetic Acid 30% - 316SS fittings, Aflas gaskets
- Phosphoric Acid 85% - PVC fittings, Viton gaskets
- Polyaluminum Chloride - PVC fittings, EPDM gaskets
- Potassium Carbonate 50% - PVC fittings, EPDM gaskets
- Potassium Hydroxide saturated - PVC fittings, EPDM gaskets
- Propylene Glycol - PP/316SS fittings, EPDM gaskets
- Sodium Bisulfate - PVC/PP fittings, EPDM gaskets
- Sodium Bisulfite - PVC/PP fittings, EPDM gaskets
- Sodium Carbonate 30% - PVC fittings, EPDM gaskets
- Sodium Hypochlorite <16.5% - PVC fittings, Viton gaskets
- Sodium Thiosulfate 40% - PVC fittings, EPDM gaskets
- Sulfuric Acid 98% - CPVC fittings, Viton gaskets
- Urea Solution 50% - PP/PVC fittings, EPDM gaskets
- Zinc Orthophosphate - PP/316SS fittings, EPDM gaskets
- Ozonated Water up to 10 PPM - PVC fittings, EPDM gaskets
Notice the gasket changes with the chemical - EPDM for the salts, glycols, and DEF; Viton for the acids and hypochlorite; Aflas for peracetic acid - and DEF demands 316 stainless hardware, not brass. The most common mistake on a leg tank like this is matching the fitting thread but ignoring the gasket and concentration, then watching a weep start at the bulkhead. Cross-check your chemical, concentration, and temperature against the full chart and our chemical compatibility guide before you order hardware.
Freight and ordering
This tank ships LTL freight from the Enduraplas plant in Neche, ND, quoted live to your ZIP - get your number with the Freight Cost Estimator or call 866-418-1777. Because it is a non-roadable trailer tank, it is worth reading our guides on applicator and leg tanks for fertilizer, portable utility tanks and the 49 CFR 173.5 agricultural exemption, and fertilizer-blend tank stratification before you put a dense blend in the field. Questions on fittings, freight, or fit - call 866-418-1777.
