The Enduraplas 1400 Gallon Green Horizontal Sump Bottom Leg Tank with frame is a transport-rated horizontal leg tank built to haul dense agricultural and industrial liquids on the move. Molded in green polyethylene with a 1.9 specific gravity rating, it carries a 1,400-gallon working capacity inside a 71-inch tall, 70-inch wide, 102-inch long footprint, and the sump bottom drains the tank fully between loads. The full-frame cradle is what makes it a haul tank rather than a stationary vessel, and the 1.9 SG rating is the headline number for anyone moving fertilizer blends, brine, or chemical loads heavier than water.
Will it work for your load?
Sizing math matters more here than on a static tank, because the frame and your trailer have to carry whatever you pour in. Filled with plain water this tank weighs roughly 11,676 lb. At its full 1.9 specific gravity rating the maximum rated contents weight climbs to about 22,184 lb of liquid alone. Before you spec the trailer, axles, or tie-downs, run those numbers against your gross combination weight rating and confirm the product you are hauling does not exceed 1.9 SG. Use the Tank Sizing Calculator and the Tank Sizing Guide to translate gallons into pounds for your specific liquid before you commit. The 70 x 102 inch footprint and integrated leg frame are designed to seat on a flatbed or applicator trailer. The sump bottom earns its keep when you switch between or fully evacuate settling chemistries between loads, draining low solids and residue that a flat floor would leave behind. This tank does not ship with a fixed fitting package; outlet and bulkhead fittings are spec'd to your chemical and your plumbing, so check the technical drawing on this page for outlet, sump, and frame dimensions before you order hardware.
Chemical compatibility
This tank is molded polyethylene with a 1.9 specific gravity rating. Because the polyethylene grade is not confirmed, verify whether this shell is linear or crosslinked polyethylene before committing it to aggressive acid service, and always check your exact concentration and temperature against the OEM chemical-resistance chart, which is concentration- and temperature-specific, before you fill. At the 1.9 SG rating this tank is matched to a broad range of heavier-than-water chemistries. The salts, carbonates, and glycols generally run on PVC fittings with EPDM gaskets: aluminum sulfate (50%), calcium chloride (40%), ethylene glycol (100%), ferric chloride (50%), ferric sulfate (60%), ferrous sulfate (20%), magnesium chloride (30%), polyaluminum chloride, potassium carbonate (50%), potassium hydroxide (saturated), sodium carbonate (30%), sodium thiosulfate (40%), and acetic acid (60%, PP/PVC). The stronger oxidizers and acids step up to Viton gaskets: hydrochloric acid (37%), hydrofluoric acid (48%), hydrofluosilicic acid (26%), hydrogen peroxide (50%), phosphoric acid (85%), and sodium hypochlorite (<16.5%); sulfuric acid at 98% specifically calls for CPVC fittings with Viton. A few chemistries demand stainless: DEF at 32.5% runs on 316 stainless with EPDM, making this a practical DEF transport tank, and peracetic acid (30%) calls for 316 stainless with Aflas. The remaining compatible chemistries — propylene glycol (PP/316SS, EPDM), sodium bisulfate, sodium bisulfite, zinc orthophosphate, and ozonated water (up to 10 PPM) — should be matched to the chart fitting and gasket as listed. Match every fitting and gasket to your specific chemical, and review the full chemical compatibility reference before ordering.
The mistake to avoid
The costliest error on a horizontal leg haul tank is treating the 1.9 SG rating as a license to fill every product to the brim. That rating is a structural ceiling, not a default — and because the polyethylene grade is unconfirmed, confirm linear versus crosslinked before any aggressive acid goes in. Match your fitting and gasket material to your exact chemical from the OEM chart, and never put a fluid heavier than 1.9 SG into this tank. Getting the resin or fitting spec wrong is what turns a transport tank into a roadside cleanup.
This Enduraplas horizontal leg tank ships LTL freight, quoted live to your ZIP, from the nearest stocking plant in Neche, ND. Get a freight estimate instantly with our Freight Cost Estimator, or call us at 866-418-1777 to talk through your hauling setup. For application context, see our guides on applicator and leg tanks for fertilizer, portable utility tanks and DOT classification, and fertilizer-blend tank stratification.
