The Snyder Industries 750 Gallon Sulfuric Acid Double Wall Tank (SKU 5990902N30) is a 1.9 specific-gravity polyethylene containment tank built for heavy, high-density liquids like sulfuric acid rather than plain water. It holds 750 gallons in an Opaque White shell measuring 73 in wide by 73 in long with a 67 in height — a wide, low-profile double wall unit whose 73.0 x 73.0 in footprint drives your containment area and pad size more than its height does. The double-wall design places a primary tank inside an integral secondary containment shell, so a primary-wall failure is caught by the outer wall instead of reaching your pad or the surrounding area.
Will it work for your acid?
The number that matters most is the 1.9 specific-gravity rating. That means the wall is engineered to carry contents up to 1.9 times the density of water, which is why this tank is spec'd for dense, high-density service and not for a simple water application. 750 gallons of water alone weighs about 6,255 lb; at the tank's full 1.9 SG rating the contents can reach roughly 11,884 lb. Your actual sulfuric acid load depends on its concentration and density, so confirm that figure against the 1.9 ceiling before you fill, and size your pad, saddle, and anchoring to the maximum rated 11,884 lb load — not to the water weight. For working usable volume against nominal capacity, our Tank Sizing Calculator and Tank Sizing Guide walk the numbers with you.
Fittings and gaskets — confirm before you order
On an acid tank, the polyethylene shell is rarely the compatibility risk — the wetted fittings and the gasket elastomer are. This listing does not carry packed fitting or gasket detail, so call 866-418-1777 with your outlet size, fill and vent needs, and acid concentration and we will confirm the fitting configuration and the correct gasket material for your service before the tank is built. Do not assume a default gasket will hold up to concentrated acid; verify it against your chemistry first.
The mistake to avoid
The most common error on a double-wall tank like this is treating the secondary containment as freeboard you can fill. It is not — the outer wall is there to catch a leak, and freeboard for thermal expansion belongs inside the primary. Snyder's Captor double-wall platform is built around that discipline. Our guide on Captor double-wall freeboard sizing per ASTM D1998 shows how density and thermal expansion set the real volume you can actually use, and the SPCC 40 CFR 112 compliance walkthrough covers how integral containment fits a spill-prevention plan. If you are pouring a new foundation, the concrete pad sizing framework keeps that 11,884 lb rated load properly supported.
This 750 gallon Snyder double wall tank ships LTL freight from the Chowchilla, CA plant, quoted live to your ZIP — enter your destination in the Freight Cost Estimator for a real number, or call 866-418-1777 and we will build the quote and confirm rigging for the unit. Give us your liquid, concentration, and delivery ZIP and we will make sure this tank matches the job before it leaves California.
