The Snyder Industries 500 Gallon ASTM XLPE Heavy Duty Vertical Storage Tank is a crosslinked polyethylene vertical storage tank built for demanding water and liquid storage where wall strength matters. Molded in Natural White with a 1.9 specific gravity rating, this 500 gallon tank stands 77 inches tall on a 53 x 53 inch footprint, so it fits a compact pad while giving you full 500 gallon capacity. The crosslinked (XLPE) wall is the heavy-duty choice: it resists stress cracking and impact better than standard HDPE, which is the real reason to pay the XLPE premium for utility water, process water, and reserve storage that has to last.
Will it work for your site?
Filled with water, this vertical tank carries roughly 4,170 lb of contents, and its wall is rated to hold contents up to 7,923 lb at the 1.9 specific gravity rating. In practical terms, that leaves about 3,750 lb of unused weight capacity above a full water load, so you can store liquid up to 1.9 times water density (near 15.8 lb per gallon) without over-stressing the shell. The 53 x 53 inch footprint and 77 inch height are the numbers to check against your slab, doorway, and overhead clearance before you order, so measure the path in. Three fittings come standard and each does a distinct job: the flange is your outlet and plumbing connection, the 18-inch PE threaded and vented lid is the fill point that vents to prevent vacuum or pressure on fill and draw, and the manway with 15-inch access is the interior entry for cleanout and inspection. See the technical drawing on this page for exact fitting placement and outlet elevation. If you are still deciding between sizes, our Tank Sizing Calculator and Tank Sizing Guide help you match capacity to demand.
The mistake to avoid
The most common misstep on a heavy-duty XLPE tank is treating the 1.9 SG rating as an invitation to store any chemical. The rating tells you the shell can carry the weight of a dense liquid; it does not by itself confirm chemical compatibility of the resin, gaskets, and fittings with your specific product. Confirm every wetted part against your chemical before service, not just the shell: the flange gasket, the 18-inch lid seal, and the vent hardware all have to be compatible too. If your job is strictly potable or utility water near 1.0 SG, understand that the value here is impact and stress-crack durability and long service life, not the density rating. For the full reasoning behind crosslinked versus standard polyethylene, read Snyder XLPE vs HDPE: When Crosslinking Matters for Chemistry Duty.
Base and anchoring
At 77 inches tall on a 53-inch footprint and rated to 7,923 lb, this tank sits high relative to its base and needs a proper foundation, especially when partially full or empty in wind- or seismic-exposed sites. Set it on a full-support concrete pad and plan anchoring for the height-to-footprint ratio. Our guide on concrete pad sizing for above-ground polyethylene tanks walks through the framework for a filled tank of this weight.
This vertical storage tank ships LTL freight from the Snyder plant in Marked Tree, Arkansas, with the cost quoted live to your ZIP code. Get a number in seconds with our Freight Cost Estimator or call 866-418-1777 to lock in your order and delivery details. Give us the delivery ZIP and whether you need a liftgate or residential delivery, and we will quote the nearest, lowest-cost route from Marked Tree.
