The Snyder Industries 360 Gallon Vertical Storage Tank is molded in ASTM XLPE (crosslinked linear polyethylene) with a 1.9 specific gravity rating, which means it is built to hold contents up to 1.9 times the density of water. For plain water storage that rating is deep headroom, not a limit: at 8.34 lb per gallon a full 360 gallons weighs about 3,002 pounds, well under the tank's 5,705-pound maximum rated contents weight. That roughly 2,700-pound gap between full-water weight and the max rating is your chemistry reserve, so the same tank that stores water today already covers a move to a denser fluid up to 1.9 times water later. If you are sizing a fire-water reservoir, an irrigation buffer, or a bulk water supply and want to run the numbers against a footprint, the Tank Sizing Calculator and Tank Sizing Guide walk you through usable volume versus rated capacity.
Will it work for your site
This is a black vertical tank standing 59 inches tall on a 53 x 53 inch square footprint, so it fits a compact pad while stacking capacity vertically. That 53-inch width is also the limiting dimension for moving the tank through a gate or doorway, so measure your access opening before delivery day. The black resin resists UV and discourages algae growth in stored water. Fittings shown on the technical drawing on this page include a flange outlet, an 18-inch PE threaded and vented lid, and a manway with 15-inch access for interior reach and cleaning. These are the mating points you spec against: the flange outlet needs a matching gasket and bulkhead hardware, while the 18-inch threaded lid is your fill and vent interface. Review the technical drawing for exact fitting placement and elevations before you set anchor points or plumb your supply and draw lines.
Why crosslinked polyethylene
XLPE is the crosslinked cousin of standard HDPE, and the difference matters most for demanding duty. Because this tank carries the 1.9 SG heavy-duty rating in XLPE, it is the material you want if there is any chance the contents get denser than water down the road. If you are weighing the two materials for your application, the guide on Snyder XLPE vs HDPE and when crosslinking matters explains where the extra molecular structure earns its keep. For water storage, the XLPE wall gives you a tank that will outlast simpler builds under sun and thermal cycling.
Foundation and freeze planning
A loaded 360-gallon tank concentrates its weight on that 53 x 53 inch base, so a level, full-support pad is not optional. The framework in Concrete Pad Sizing for Above-Ground Polyethylene Tanks covers how to size and detail that foundation. For cold-climate or standby fire-water service, the Fire-Water Reservoir Tank Design guide addresses NFPA 22 sizing and freeze protection.
This Snyder vertical storage tank ships LTL freight from the Snyder plant in Marked Tree, Arkansas, with the rate quoted live to your ZIP based on distance and access. Get a freight estimate through the Freight Cost Estimator, or call 866-418-1777 and we will size, quote, and route it for you.
