The Snyder Industries 1650 Gallon Plastic Horizontal Leg Tank is a hauling-grade polyethylene tank built for moving liquid across the field or down the road. It measures 142 inches long by 71 inches wide by 55 inches tall, holds 1,650 gallons, and rides on integrally molded legs with securing hoops that lock it onto a skid or trailer. Snyder rates this tank to a 1.9 specific gravity, which is the spec that matters most here: it is engineered to haul dense agricultural and industrial liquids, not just water. This is the horizontal leg tank to specify when load weight, not volume, is your constraint.
Will it work for your liquid and your trailer?
Filled with water (SG 1.0), this tank carries roughly 13,761 pounds of contents. At its full 1.9 specific-gravity rating, it is built to handle up to 26,146 pounds of contents - the headroom that lets you run heavy fertilizer blends and dense solutions without overstressing the wall. At 1.9 SG this is already Snyder's heaviest-duty rating for this footprint, so there is no denser-rated step up to chase: you are specifying the top of the line for weight. Use those two weights to size your trailer, axles, and tie-downs before you fill, and use the 71 x 142 inch footprint and 55 inch height to confirm deck space and clearance. If you are matching tank capacity to a spray or haul program, run the numbers through our Tank Sizing Calculator and the Tank Sizing Guide first. See the technical drawing on this page for overall geometry. Fitting sizes and locations are not in our spec data for this build, so confirm the manhole, fill, and outlet configuration with us at 866-418-1777 before ordering. For DOT and trailer-classification questions common to leg and applicator tanks, the guide on applicator and leg tanks for fertilizer and the 49 CFR 173.5 agricultural exemption breakdown are worth reading before you put it on the highway.
Chemical compatibility
This tank is molded from polyethylene and rated to 1.9 specific gravity. The resin code in our data is not fully confirmed, so confirm the exact resin - high-density linear polyethylene (HDLPE) versus crosslinked (XLPE) - for your specific Snyder build before committing it to chemical service, since the two resins do not share the same chemical-resistance profile. One use case worth calling out up front: this 1.9 SG tank is rated for DEF (32.5%), but DEF needs 316 stainless steel fittings with EPDM gaskets, not the PVC most salts use - get that fitting material right and the diesel exhaust fluid stays in spec. Compatibility below is keyed to the OEM chemical-resistance chart and is concentration- and temperature-specific; always confirm against the chart for your exact conditions.
At the listed concentrations, this 1.9 SG tank is suitable for: acetic acid (60%), aluminum sulfate (50%), calcium chloride (40%), DEF (32.5%), ethylene glycol (100%), ferric chloride (50%), ferric sulfate (60%), ferrous sulfate (20%), hydrochloric acid (37%), hydrofluoric acid (48%), hydrofluosilicic acid (26%), hydrogen peroxide (50%), magnesium chloride (30%), peracetic acid (30%), phosphoric acid (85%), polyaluminum chloride, potassium carbonate (50%), potassium hydroxide (saturated), propylene glycol, sodium bisulfate, sodium bisulfite, sodium carbonate (30%), sodium hypochlorite (<16.5%), sodium thiosulfate (40%), sulfuric acid (98%), urea solution (50%), and zinc orthophosphate. It is also rated for ozonated water up to 10 PPM with PVC fittings and EPDM gaskets; we do not yet have a dedicated compatibility page for that one.
Fitting and gasket selection is not one-size-fits-all on this list. Most salts and the glycols pair with PVC fittings and EPDM gaskets, but the aggressive acids and oxidizers change the rules: hydrochloric (37%), hydrofluoric (48%), hydrofluosilicic (26%), hydrogen peroxide (50%), phosphoric (85%), and sodium hypochlorite (<16.5%) all call for Viton gaskets; sulfuric acid (98%) needs CPVC fittings with Viton; DEF (32.5%) and peracetic acid (30%) call for 316 stainless fittings, and peracetic acid specifically wants Aflas gaskets. Spec the wrong elastomer and the tank will outlast a gasket that fails in service. Verify each material against the OEM chart and your concentration, then see the full detail on our chemical compatibility resource.
The mistake to avoid
The expensive error on a leg tank like this is loading to volume instead of to weight. A 1,650-gallon tank does not mean 1,650 gallons of every liquid. Water fills it at about 13,761 pounds, but a dense fertilizer or brine near 1.9 SG approaches the 26,146-pound contents ceiling - and that load sits on your trailer, your hoops, and your tie-downs, not just the tank wall. For fertilizer blends specifically, density-driven stratification is a real field problem; the guide on blend tank stratification and mixing protocol covers how to keep a load on-spec. And if the liquid is regulated for secondary containment, a standard leg tank is not a substitute for a double-wall SPCC setup - see the Snyder Captor double-wall SPCC walkthrough.
This tank ships LTL freight from the nearest Snyder plant - Chowchilla, CA or Marked Tree, AR - with the rate quoted live to your ZIP. Get your number in seconds with our Freight Cost Estimator, or call 866-418-1777 and we will line up the haul. One Source Plastics, horizontal leg tanks done right.
