The Snyder Industries 175 Gallon HDLPE Vertical Chemical Storage Tank is a white, high-density linear polyethylene tank rated to a 1.9 specific gravity, built for storing heavy chemical solutions that exceed the density of water. It stands 66 inches tall on a compact 29 x 29 inch footprint, so it fits tight equipment rooms, secondary containment pads, and dosing skids where floor space is limited but vertical clearance is available. As a vertical storage tank, it holds 175 gallons of usable volume and carries Snyder's 1.9 SG wall rating, meaning the polyethylene is engineered for the weight of concentrated chemicals, not just water.
Will it work for your application?
Match the tank to your liquid by weight, not just volume. Filled with water this tank carries about 1,460 pounds; at its full 1.9 specific gravity rating it is engineered to support up to 2,773 pounds of contents. That headroom is what separates a chemical-rated tank from a plain water tank, and it is why the 1.9 SG rating matters when you store acids, salts, or concentrated solutions heavier than water. Plan the install around both numbers: you need roughly 66 inches of vertical clearance plus room above that for fill and vent access, and on a 29 x 29 inch footprint the 2,773-pound loaded weight works out to nearly 480 pounds per square foot, so confirm your slab or pad rating before you order. Run the figures through our Tank Sizing Calculator and the Tank Sizing Guide to confirm the 175-gallon size, the loaded weight, and your dispensing rate all work for your space.
Chemical compatibility
This tank is molded from HDLPE and carries a 1.9 specific gravity rating, so it can hold chemicals well above the density of water. Always verify your specific chemical, concentration, and temperature against the OEM chemical-resistance chart, which is concentration- and temperature-specific, before putting any chemical into service. Compatible chemicals from the resistance data include Acetic Acid (60%, PP/PVC fittings, EPDM gaskets), Aluminum Sulfate (50%, PVC, EPDM), Calcium Chloride (40%, PVC, EPDM), DEF / diesel exhaust fluid (32.5% — the ISO-standard as-sold concentration, 316SS fittings, EPDM), Ethylene Glycol (100%, PVC, EPDM), Ferric Chloride (50%, PVC, EPDM), Ferric Sulfate (60%, PVC, EPDM), Ferrous Sulfate (20%, PVC, EPDM), Hydrochloric Acid (37%, PVC fittings, Viton gaskets), Hydrofluoric Acid (48%, PP/PVC, Viton), Hydrofluosilicic Acid (26%, PP/PVC, Viton), Hydrogen Peroxide (50%, PVC, Viton), Magnesium Chloride (30%, PVC, EPDM), Peracetic Acid (30%, 316SS, Aflas gaskets), Phosphoric Acid (85%, PVC, Viton), Polyaluminum Chloride (PVC, EPDM), Potassium Carbonate (50%, PVC, EPDM), Potassium Hydroxide (saturated, PVC, EPDM), Propylene Glycol (PP/316SS, EPDM), Sodium Bisulfate (PVC/PP, EPDM), Sodium Bisulfite (PVC/PP, EPDM), Sodium Carbonate (30%, PVC, EPDM), Sodium Hypochlorite (under 16.5%, PVC fittings, Viton gaskets), Sodium Thiosulfate (40%, PVC, EPDM), Sulfuric Acid (98%, CPVC fittings, Viton gaskets), Urea Solution (50%, PP/PVC, EPDM), Zinc Orthophosphate (PP/316SS, EPDM), and Ozonated Water (up to 10 PPM, PVC, EPDM). Note the fitting and gasket call-outs: aggressive oxidizers like sodium hypochlorite, hydrogen peroxide, peracetic acid, and sulfuric acid require Viton or Aflas gaskets, and DEF, peracetic acid, and zinc orthophosphate call for 316 stainless fittings rather than PVC. Open each chemical's page in our Chemical Compatibility Database for the concentration- and temperature-specific detail. At 1.9 SG this is Snyder's top-tier wall rating for this size — there is no heavier-rated version, so if your liquid runs above 1.9 specific gravity, call us before you order.
The mistake to avoid
The single most common error on a chemical tank is matching the gasket and fitting material to the chemical, not just the tank shell. The HDLPE shell handles all the chemicals listed above, but the wrong elastomer will fail fast: sodium hypochlorite (bleach), hydrogen peroxide, phosphoric acid, and sulfuric acid all demand Viton, peracetic acid demands Aflas, and DEF, peracetic acid, and zinc orthophosphate need 316 stainless steel fittings instead of standard PVC. Putting an EPDM gasket on a bleach line is the kind of mistake that turns a leak into an incident. For instrumentation, our guide on level gauge selection for chemical service walks through radar, ultrasonic, hydrostatic, and magnetostrictive options for aggressive media. If you are planning containment, see our breakdown of secondary-containment sizing under 40 CFR 264.175 RCRA and the Snyder Captor Plus 110% containment comparison. For a full walkthrough of this size, read our 175 gallon vertical liquid storage tank buyer's guide, and check the technical drawing on this page for exact fitting locations.
This tank ships LTL freight from Snyder's plant in Lincoln, Nebraska, quoted live to your ZIP. Get an exact number in seconds with our Freight Cost Estimator, or call 866-418-1777 and our team will quote the freight and confirm the right fittings, gaskets, and 1.9 SG rating for your chemical before you buy.
