The Snyder Industries 6500 Gallon Sulfuric Acid Double Wall Tank is a full-containment vessel built for aggressive, high-density chemical service. It is molded in HDLPE (resin #880046) in Opaque White, carries a 1.9 specific gravity rating, and stands 199 inches tall on a 120 by 120 inch square footprint. The double-wall construction places a primary storage tank inside an integral secondary containment shell, so a breach in the inner wall is caught by the outer wall rather than reaching your pad or the surrounding ground.
Will it work for your application
The 1.9 specific gravity rating is the number that matters most on this tank. Sulfuric acid is dense, and a tank rated to only 1.0 or 1.5 SG will not carry it safely at full volume. This unit is engineered for that load: at 6500 gallons the plain water weight is about 54,210 lb, while the maximum rated contents weight climbs to roughly 102,999 lb at the full 1.9 SG. Confirm your product's actual specific gravity against that 1.9 ceiling before you fill, and never substitute an under-rated 1.0 or 1.5 SG tank to save money. The 6500 gallon nameplate is also not your usable volume: freeboard for thermal expansion cuts into what you can actually fill, so compute your real fill line with the Tank Sizing Calculator and Tank Sizing Guide rather than assuming a full 6500. Our Snyder double-wall freeboard sizing guide walks through how density and expansion determine that number.
Fittings, containment, and the drawing
Fitting locations, outlet sizing, and the secondary-containment geometry are shown on the technical drawing on this page — review it against your piping and manway plan before ordering. Match every gasket and O-ring material to your exact sulfuric acid concentration and service temperature; that seal choice is as important as the tank itself and must be verified, not assumed. The 120 by 120 inch square footprint sizes your concrete pad, and for above-ground poly tanks that pad detail is not an afterthought — our concrete pad sizing framework covers the ACI 360R-10 approach. If this tank is part of an SPCC program, the SPCC 40 CFR 112 walkthrough shows how integral secondary containment fits a compliance plan.
The mistake to avoid
The most common and most expensive error on a double wall tank of this class is treating it like a general-purpose water or storage tank. The 1.9 SG rating, the resin, and the containment shell are matched to a specific dense-chemical duty; do not fill it above its rated specific gravity, and verify chemical compatibility for your exact concentration and temperature before committing. When any detail of your service falls outside what is shown here, call us at 866-418-1777 and we will confirm it before you buy.
This double wall tank ships LTL freight from the Snyder plant in Lincoln, Nebraska, as a single oversized unit, with the cost quoted live to your delivery ZIP. At 199 inches tall this is a crane- or forklift-offload load, so confirm site access and offload equipment when you request the quote. Get your number now with the Freight Cost Estimator or call 866-418-1777 to lock in the tank and freight together.
