The Snyder Industries 330 Gallon HDPE Vertical Liquid Storage Tank is a 58-inch-tall white polyethylene tank on a compact 44 x 44-inch footprint, built for above-ground vertical storage and carrying ASTM Certification. With a 1.9 specific gravity rating, it holds up to roughly 5,229 lb of contents at its rated maximum while a full load of water weighs about 2,752 lb. For water service that puts you well below the structural ceiling, which is exactly what you want for a vertical tank that will see years of fill-and-draw cycling. The 1.9 SG rating also means you are buying more shell than a water use case needs, so this same tank steps up to heavier brine, fertilizer, or acid service later without a replacement.
Will this tank work for your site?
Plan the space and the pad off the real dimensions. The body stands 58 inches tall, and the 44 x 44 figure is the outer-diameter envelope of a round vertical shell, not a square slab requirement, so measure your doorway, slab, or trailer against the 44-inch widest point rather than a corner-to-corner guess. Vertical tanks rarely clear a standard 36-inch door, so confirm that path before delivery day. A full 330 gallons of water adds about 2,752 lb on top of the empty tank, while the rated ceiling of 5,229 lb of contents is the headroom that lets the same shell carry liquids up to 1.9 times the density of water. If you are still settling on capacity, the Tank Sizing Calculator and Tank Sizing Guide walk you through matching gallons and footprint to your draw rate and refill schedule. Because HDPE wall thickness is heaviest at the base and thins toward the top, the HDPE tank wall thickness guide explains the ASTM D1998 sizing logic behind the ASTM Certification on this tank.
Set it on the right pad
A vertical HDPE storage tank performs best on a flat foundation that fully supports the entire footprint, not just the perimeter. For a permanent above-ground install, size the slab to the load the tank will actually impose; the concrete pad sizing guide lays out the ACI 360R-10 framework for that. If this 330-gallon tank is part of a rural or remote fire-water reservoir, the fire-water reservoir design guide covers NFPA 22 sizing and cold-climate freeze protection.
The mistake to avoid
This tank ships without a pre-defined fitting configuration, so confirm outlet size, gasket material, and bulkhead placement at the time you order rather than assuming a port. Whatever outlet you spec, do not plumb it as a rigid extension of your piping: polyethylene flexes and the shell breathes slightly as it fills and empties, so connections need independent pipe support rather than hard ties to a fixed line. Stressing a connection against settling pipe is what turns a perfectly good tank into a leak. And match the bulkhead gasket to the stored liquid, since the gasket is the actual sealing element at the fitting and an EPDM gasket suited to water is not the same one you want against a heavier chemical. Confirm the specific gravity of whatever you plan to store against the 1.9 rating before committing this shell to anything denser than water.
This vertical storage tank ships LTL freight from the Snyder plant in Philippi, West Virginia, quoted live to your ZIP. Get a freight quote with the Freight Cost Estimator, or call 866-418-1777 to confirm fitting size, gasket material, lead time, and the freight class for your delivery.
