The Snyder Industries 535 Gallon Horizontal Leg Tank in black is built for one job round tanks handle poorly: hauling liquid down the road. The horizontal body sits low on molded legs so the load rides stable under braking and cornering, and the 1.9 specific-gravity rating means this tank is engineered for dense agricultural and chemical liquids, not just water. At 535 gallons, full of water it carries 4,462 lb of contents; rated to its 1.9 SG ceiling it is built to hold up to 8,478 lb. The footprint is 47.0 x 78.0 inches with an overall height of 52 inches, so confirm your trailer deck or skid frame supports that span and weight before you load. Because LTL is rated on weight and dimensions, that 47 x 78 in footprint and the loaded weight both drive your quote.
Will it work for your haul?
This is a black polyethylene horizontal leg tank, the workhorse format for nurse-tank, sprayer-fill, and field-transfer duty. The black resin cuts UV-driven algae growth in water and limits light transmission for light-sensitive contents. Because it is a leg tank and not a free-standing vertical, it needs to be cradled and strapped to a flat deck; the legs locate it, they do not anchor a loaded tank against road forces. This listing does not specify factory-molded fittings or outlet locations, so confirm bung and outlet size and placement for your fill, vent, and discharge plumbing before ordering, and check the technical drawing on this page. Use the Tank Sizing Calculator and Tank Sizing Guide to match capacity to your real per-trip volume, and remember the full-water figure of 4,462 lb is your floor, not your ceiling, once you put a heavier liquid in it.
Chemical compatibility
This tank is polyethylene with a 1.9 SG rating. The resin grade reads as HDLPE but is not fully confirmed, so confirm HDLPE versus XLPE before any chemical service, because the two behave differently under sustained chemical load. As a working rule, default to PVC fittings with EPDM gaskets for the salts and glycols on this list; step up to Viton gaskets for the oxidizers and strong acids, CPVC fittings for sulfuric acid 98%, 316SS fittings for DEF 32.5% and peracetic acid 30%, and Aflas gaskets for peracetic acid 30%. The pairings below come from the OEM chemical-resistance chart and are concentration- and temperature-specific, so verify against that chart 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
At 1.9 specific gravity this tank is already rated to the densest standard polyethylene class we stock; there is no higher-SG version of this format to step up to, so spec to the 8,478 lb ceiling rather than expecting headroom above it. For the full picture across every listed liquid, start at the chemical compatibility reference and read it against your concentration and operating temperature.
The mistake to avoid
The trap on a leg tank is loading a dense liquid as if it were water. The 535-gallon water weight is 4,462 lb, but at this tank's 1.9 SG ceiling the contents can reach 8,478 lb, nearly double. Spec your trailer axles, hitch rating, and tie-downs to the heavy number for whatever you actually haul, and confirm the resin (HDLPE vs XLPE) before putting any chemical in it. If your chemical service falls under SPCC, single-wall leg tanks do not provide secondary containment; see our walkthrough on Snyder Captor double-wall tanks for SPCC 40 CFR 112. If you are running fertilizer blends, watch for stratification; our guide on fertilizer-blend tank stratification covers the mixing protocol that catches an off-spec load before the spreader runs. For DOT classification on non-roadable trailer and applicator setups, see our breakdown of applicator and leg tanks for fertilizer.
This tank ships LTL freight from the Snyder plant in Marked Tree, AR, quoted live to your ZIP. Run the Freight Cost Estimator with your ZIP before you commit, or call 866-418-1777 to lock in delivery on this horizontal leg tank.
