The Snyder Industries 335 Gallon Plastic Horizontal Leg Tank is a polyethylene haul tank built for transferring water and a wide range of agricultural and industrial liquids on a trailer or skid. It carries a 1.9 specific gravity rating and ships in white so you can read the liquid level through the wall. The integrally molded legs cradle the cylinder horizontally, which is what makes a horizontal leg tank the standard choice for nurse-trailer, applicator, and field-transfer duty where the load rides low and stays put in transit.
Will this tank work for your liquid?
The body measures 56 in long by 44 in wide by 49 in tall, sitting on a 44.0 x 56.0 in footprint that drops onto most utility-trailer decks and skid frames. Filled with water it carries 2,794 lb. Because the wall is rated to a 1.9 specific gravity, the tank is engineered to hold up to 5,308 lb of contents at full rated weight, so you have real headroom for denser fluids like fertilizer blends and brines, not just water. Confirm your loaded weight against your trailer and axle rating before you fill, and use the Tank Sizing Calculator and Tank Sizing Guide if you are matching gallons and weight to a specific job.
Chemical compatibility
This tank is polyethylene with a 1.9 specific gravity rating, which is the load-bearing fact for chemical service. Before committing it to a demanding chemical, confirm the exact resin grade (HDLPE versus crosslinked XLPE) with us at 866-418-1777. The chemicals below are listed as compatible per the OEM chemical-resistance chart, which is concentration- and temperature-specific - verify your exact concentration and operating temperature against that chart before service. The fitting and gasket materials shown beside each chemical are the recommended combination, so treat this list as a spec sheet, not decoration. Most services run standard PVC fittings with EPDM gaskets, but a few demand non-standard hardware: Sulfuric Acid 98% needs CPVC; DEF 32.5% and Peracetic Acid 30% need 316SS; and the aggressive acids (Hydrochloric 37%, Hydrofluoric 48%, Hydrofluosilicic 26%, Hydrogen Peroxide 50%, Phosphoric 85%) plus Sodium Hypochlorite under 16.5% all require Viton gaskets rather than EPDM.
- 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
The wrong gasket fails long before the tank does, so match your hardware to the fluid you are actually running. See the full chemical compatibility reference for the complete chart.
The mistake to avoid
The single most common error on a 1.9 SG haul tank is filling it to the gallon line with a dense fluid and overloading the trailer instead of the tank. At full rated contents this tank can carry 5,308 lb, and many ag fluids weigh far more per gallon than water - a stratified or fully blended fertilizer load can hit your rated wall limit well before the tank looks full. Watch your axle and tongue weight, and review fertilizer-blend tank stratification and the applicator and leg tank fertilizer guide before you load. If you are hauling DEF, note this tank is listed compatible with diesel exhaust fluid at 32.5% on 316SS fittings, so spec stainless hardware rather than brass or carbon steel. For a regulated or double-wall containment application, the Snyder Captor SPCC walkthrough covers when a single-wall horizontal leg tank is not enough. Check the technical drawing on this page for fitting locations and dimensions.
This horizontal leg tank ships LTL freight from Marked Tree, AR, quoted live to your ZIP. Get your exact number with the Freight Cost Estimator or call 866-418-1777, and we will help you confirm fitting layout, specific gravity, and the right tank for your haul before it ships.
