The Chem-Tainer 200 Gallon Vertical Double Wall Liquid Chemical Storage Tank (SKU TC4152DC) packages a primary tank and integral secondary containment in a single 41 x 41 inch footprint, so you get built-in spill containment without pouring a separate berm. For operations working toward SPCC 40 CFR 112 compliance, that double-wall construction is the main reason to choose this design over a single-wall tank. It is molded from natural white polyethylene and carries a 1.9 specific gravity rating, engineering it to hold dense chemicals up to that weight class within the wall design margin.
Will this 200 gallon double wall tank work for my application?
Capacity is 200 gallons in a vertical storage tank profile on a 41 x 41 inch footprint with a 52 inch overall height. Check your overhead clearance against that 52 inch dimension before ordering, since fill access and any top-mounted gauge or vent need room above the dome. Full of plain water the tank weighs about 1,668 lb; at its maximum rated 1.9 specific gravity the contents-plus-tank load reaches roughly 3,169 lb, so size your pad, anchoring, and any curb or saddle to that figure rather than to the water number. Fitting configuration is not specified in our catalog data for this double wall tank, so confirm all port locations and sizes by phone before you order, and review the technical drawing on this page for the as-built layout. If you are choosing between this and a larger unit, run your turnover and refill math through our Tank Sizing Calculator and the Tank Sizing Guide.
Chemical compatibility
This is a polyethylene tank rated to 1.9 specific gravity. The resin family on the data we hold reads HDLPE but is not fully confirmed, so verify HDLPE versus XLPE with us at 866-418-1777 before committing to chemical service - the distinction matters for aggressive oxidizers and elevated concentrations. Always pair the tank with chemically appropriate fittings and gaskets. Representative chemicals this tank's SG class can hold, with the fitting and gasket materials called out on the OEM chemical-resistance chart, include acetic acid (60%, PP/PVC fittings, EPDM gasket), aluminum sulfate (50%, PVC, EPDM), calcium chloride (40%, PVC, EPDM), DEF (32.5%, 316SS, 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, Viton), 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), 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, Viton), sodium thiosulfate (40%, PVC, EPDM), sulfuric acid (98%, CPVC, Viton), urea solution (50%, PP/PVC, EPDM), zinc orthophosphate (PP/316SS, EPDM), and ozonated water (up to 10 PPM, PVC, EPDM). The chart is concentration- and temperature-specific, so match your exact strength and operating temperature before final selection. Full ratings live in our Chemical Compatibility Database.
The mistake to avoid
The common error on a double wall chemical tank is treating the 1.9 SG rating as a free pass and ignoring the fitting and gasket pairing. For oxidizers like sodium hypochlorite, hydrogen peroxide, and sulfuric acid, the chart calls for Viton or CPVC rather than the default EPDM, and DEF and peracetic acid demand 316SS or Aflas. Specify those materials up front. Equally, confirm the resin (HDLPE versus XLPE) before storing anything aggressive, and design your spill-response and high-level protection deliberately - see our guides on tank level gauge selection for chemical service and spillover redundancy engineering. For SPCC context on double-wall containment, the SPCC 40 CFR 112 walkthrough and the vertical tank brand comparison are useful background. If your chemical exceeds the 1.9 SG rating, call before ordering rather than assuming the margin will hold.
This tank ships LTL freight from the Merced, California plant, quoted live to your ZIP - get an exact number with our Freight Cost Estimator or call 866-418-1777 to lock in fittings, containment options, and delivery. We will confirm the resin spec and fitting package against your chemical before the tank leaves the line.
