Enduraplas 1200 Gallon Black Horizontal Sump Bottom Leg Tank w/ Frame

The Enduraplas 1200 Gallon Black Horizontal Sump Bottom Leg Tank ships with its own frame and a sump-bottom design built to drain completely, which makes it a workhorse for mobile and stationary haul duty where you need to move liquid and empty the tank without leaving a heel. At 102 inches long by 70 inches wide and 64 inches tall, this black horizontal leg tank carries 1,200 gallons, is molded from polyethylene, and carries a 1.9 specific gravity rating - the value that lets it handle dense agricultural and industrial liquids rather than just water. Buyers shopping Enduraplas horizontal leg tanks land here looking for exactly this combination of capacity, frame, and heavy-fluid rating.

Will it work for your liquid?

Start with weight. Full of water this tank and its contents run about 10,008 pounds; loaded to its maximum rated contents the tank is built for roughly 19,015 pounds, which corresponds to the 1.9 specific gravity rating. That spread matters: a fluid heavier than water - most fertilizers, brines, and acids are - pushes you toward that upper number, so size your trailer, frame, and tie-downs to the loaded weight of YOUR liquid, not to water. The 70 x 102 inch footprint and integrated frame give you a stable base for transport, and the sump bottom routes contents to a low drain point so you empty clean. One honest gap to note: the factory fitting configuration (outlet size, lid, and vents) is not specified in our data for this SKU, so confirm the as-shipped fittings with us at 866-418-1777 before you plan your plumbing. If you are matching this tank to a tongue weight or trailer rating, run the numbers through the Tank Sizing Calculator and the Tank Sizing Guide before you commit.

Chemical compatibility

This is a polyethylene tank with a 1.9 specific gravity rating - the heaviest-duty rating offered in this size, so if your liquid exceeds 1.9 specific gravity, this tank is not rated for it and you should contact us before ordering. The resin type (HDLPE versus cross-linked XLPE) is unconfirmed in our records for this SKU, so verify it with us before chemical service, since linear and cross-linked polyethylene do not handle every chemistry below the same way. The chemicals listed are concentration- and temperature-specific per the OEM chemical-resistance chart, so always check your exact concentration and operating temperature first:

• 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 (under 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

Match the fitting and gasket material to your chemical exactly as listed - the wrong gasket is the most common field failure on a chemically-resistant tank. A few entries fall outside the standard PVC/EPDM hardware most buyers stock: DEF, peracetic acid, zinc orthophosphate, and propylene glycol call for 316SS fittings; sulfuric acid at 98% needs CPVC; and peracetic acid needs Aflas gaskets. Sodium hypochlorite (bleach) must stay under 16.5% concentration and requires Viton, not EPDM - higher-strength bleach is outside this listing. See the full chemical compatibility reference for cross-checks.

The mistake to avoid

The single biggest error on a horizontal leg tank like this is loading it to the water-weight number when your liquid is denser. DEF, calcium chloride brine, ferric chloride, and most fertilizer blends weigh well more than water, so a tank carrying 1,200 gallons of a 1.9 SG product is a very different load than 1,200 gallons of water. Confirm your liquid's specific gravity stays within the 1.9 rating and verify the resin type for chemical service before you plumb it. For agricultural haul use, our guides on applicator and leg tanks for fertilizer, portable utility tank DOT classification, and fertilizer-blend tank stratification walk through the field details.

This tank ships LTL freight from the Enduraplas plant in Neche, North Dakota, quoted live to your ZIP. Get an exact number with the Freight Cost Estimator or call 866-418-1777 to lock in your delivery. Listed before freight - LTL is quoted separately to your destination.