The Snyder Industries 360 Gallon ASTM XLPE Heavy Duty Vertical Storage Tank is a crosslinked polyethylene vertical storage tank molded in natural white, standing 59 inches tall on a 53 x 53 inch square footprint. Built as an ASTM XLPE (crosslinked polyethylene) tank and rated to a 1.9 specific gravity, it is engineered for demanding storage duty where wall strength and long service life matter. If you are shopping for a heavy-duty vertical storage tank rated for liquids denser than water, this is the Snyder XLPE build to look at.
Will it work for your site?
Check clearance in two directions before you order. Vertically, the tank stands 59 inches tall, so confirm that number against your ceiling, doorway, or containment-wall height. On the ground, the 53 x 53 inch square footprint keeps the base compact for a tank of this volume, which helps when space on a concrete pad or containment area is tight. On weight: 360 gallons of water runs about 3,002 pounds full, but the crosslinked shell is rated to a 1.9 specific gravity, which lifts the maximum rated contents weight to 5,705 pounds. That rating is the real differentiator here. It means you can store a liquid up to 1.9 times the density of water in the same footprint that a standard 1.0 to 1.5 SG tank could not safely hold. Run your numbers through our Tank Sizing Calculator and review the Tank Sizing Guide so capacity and weight match your application, and size the foundation using our Concrete Pad Sizing guide.
Fittings and access
The tank carries a flange fitting, an 18-inch polyethylene threaded/vented lid, and a manway with a 15-inch access opening for interior reach during cleaning and inspection. Keep those two numbers straight: the 18 inches is the threaded/vented lid diameter, while the 15 inches is the clear access opening inside the manway. Exact fitting locations and elevations are called out on the technical drawing on this page, so confirm them against your plumbing plan first. And confirm that gasket and fitting materials suit your stored liquid rather than assuming standard hardware will hold up.
XLPE vs HDPE: the one thing not to get wrong
The most common mistake with a tank like this is treating crosslinked polyethylene the same as standard HDPE. XLPE and HDPE differ in wall structure, and the crosslinked wall is what supports this tank's 1.9 specific gravity rating and its ASTM D1998 pedigree. If you are weighing this against a linear polyethylene tank, read Snyder XLPE vs HDPE: When Crosslinking Matters, and for usable-volume planning under that standard see our ASTM D1998 freeboard sizing guide.
This tank ships LTL freight from the Snyder plant in Marked Tree, Arkansas, and freight is quoted live to your ZIP rather than included in the list price. Get an exact number with our Freight Cost Estimator, or call 866-418-1777 and our team will handle the quote and answer any fit questions before you buy.
