The Snyder Industries 330 Gallon Heavy Duty Vertical Storage Tank is a crosslinked polyethylene (XLPE) vertical storage tank built for demanding water and heavy-liquid duty. Molded in natural white with a 1.9 specific gravity rating, it stands 55 inches tall on a 48 x 48 inch footprint, giving you 330 gallons of shell capacity in a compact, freestanding cylinder. If you have been searching for a Snyder XLPE vertical tank that holds up to more than plain water, this is the size that fits a standard pad without a crane-scale install.
Will it work for your site?
Start with weight, because that is what makes or breaks the pad. Filled with water this tank carries about 2,752 pounds; at its full 1.9 specific gravity rating it can hold up to 5,229 pounds of contents. Spread across the 48 x 48 inch (16 square foot) footprint, that is roughly 172 pounds per square foot under water versus about 327 pounds per square foot at the 1.9 rating — and the higher number is what an engineer sizes rebar and slab thickness to. The same tank that sits light under rainwater or fresh water becomes a heavy load under denser liquids, so your foundation has to be built for the actual product weight, not the water number. Run your liquid through the Tank Sizing Calculator and read the Tank Sizing Guide before you pour concrete, then check the concrete pad sizing framework for the ACI 360R-10 approach to above-ground polyethylene tanks. The crosslinked wall is what separates this from a standard storage tank — the XLPE vs HDPE comparison explains when that crosslinking earns its keep and when linear HDPE is enough.
Fittings and configuration
Outlet size, lid size, and port locations are confirmed per unit against the technical drawing on this page and by phone before the tank ships — check that drawing before you plumb the site rather than assuming a fixed configuration. With a 48-inch diameter and a 55-inch height, this vertical storage tank drops into rainwater capture, fire-water reservoir, bulk fresh-water, and general vertical-tank storage roles. If you are staging it for private fire protection, the fire-water reservoir design guide covers NFPA 22 sizing discipline and cold-climate freeze protection.
The mistake to avoid
Do not size your foundation to the water weight if you are storing anything denser, and do not treat 330 gallons as fully usable volume under a heavy liquid. That figure is nominal shell capacity; a dense product needs freeboard, so your safe working volume is lower — the Snyder freeboard guide walks through the ASTM D1998 freeboard and thermal-expansion math behind the real number. This tank is rated to 1.9 specific gravity for a reason: that headroom is only real if the pad, tie-downs, and plumbing are all built for the heavier contents. Verify your liquid's specific gravity, size to working volume rather than nameplate, and stay at or under the 1.9 rating.
This tank ships LTL freight from Snyder's Chowchilla, California plant, quoted live to your ZIP code. West Coast sites see short lanes; East and Central buyers should plan for a longer haul, so pull a real number from the Freight Cost Estimator or call 866-418-1777 to lock in delivery. We will confirm the drawing, fittings, and lead time with you before the tank leaves the plant.
