The Enduraplas 3000 Gallon Green Horizontal Sump Bottom Leg Tank (SKU THD03000G) is a self-supporting horizontal leg tank built for hauling and stationary storage where the load needs to drain low. It holds 3,000 gallons, measures 130 inches long by 87 inches wide by 93 inches tall, and rides on an 87.0 x 130.0-inch footprint. The integrally molded legs let the tank sit on a flat trailer deck or pad without a separate cradle, and the sump bottom pulls product toward the low point so you can pump down closer to empty. It is molded in green polyethylene and carries a 1.9 specific gravity rating, which is what makes this horizontal tank usable for heavy liquids well past the weight of water.
Will it work for your liquid and your load?
Start with weight, because that is what dictates the trailer and the tie-downs. Filled with water this tank carries 25,020 pounds of contents. At its full 1.9 SG rating it is built to support up to 47,538 pounds of contents, so a dense fertilizer blend or a heavy acid loads far more than water does on the same volume. Use that 47,538-pound number when you size axles, a frame, or a pad. The sump bottom matters here as much as the leg support: for settling-prone chemistry like Aluminum Sulfate, Ferric Chloride, Polyaluminum Chloride, or Sodium Bisulfite, the low drain point is what lets you pump down without leaving a heel of sediment behind, where a flat-bottom horizontal would strand it. One honest caveat before you order: the outlet, fill, and vent fitting configuration is not confirmed in our data, so confirm port sizes and locations, especially the sump drain, before you commit. Our Tank Sizing Calculator and Tank Sizing Guide help you match capacity and weight to your rig.
Chemical compatibility
This Enduraplas shell is polyethylene with a 1.9 specific gravity rating. The exact resin code is not confirmed in our data, so confirm the resin grade (HDLPE versus XLPE) with us before you commit it to chemical service. The 1.9 rating gives you real headroom for dense chemistry, but the fitting and gasket material matter as much as the tank wall. Always cross-check against the OEM chemical-resistance chart for your exact concentration and temperature, since both shift the rating. A word of warning on oxidizers: the two in the list below, Sodium Hypochlorite at under 16.5% and Hydrogen Peroxide at 50%, both require Viton, not EPDM. Do not assume commercial bleach is benign and do not run it on an EPDM gasket; that is the single most common gasket mistake. Chemicals this tank can handle, at the listed concentrations and with the listed fitting and gasket materials, include:
- 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
For the full picture, see our chemical compatibility reference and match the gasket material to your chemical - EPDM, Viton, and Aflas are not interchangeable.
Freight and ordering
This tank ships LTL freight, quoted live to your ZIP, from the Enduraplas plant in Neche, North Dakota. At 130 inches long and over seven feet wide and tall, this is an oversize load, so handling may call for flatbed or oversize freight, and the North Dakota origin drives cost by distance to your delivery site. Get an exact number with our Freight Cost Estimator before you buy, or call us at 866-418-1777 and we will quote it for you. If you are spec'ing this for a fertilizer applicator rig or a DOT non-roadable trailer build, our guides on applicator and leg tanks for fertilizer DOT scope, portable utility tanks and the 49 CFR agricultural exemption, and fertilizer-blend tank stratification walk through the load-rating and mixing details that catch most buyers out.
