The Snyder Industries 300 Gallon ASTM XLPE Heavy Duty Vertical Storage Tank is a crosslinked polyethylene vertical storage tank built for demanding water and liquid-storage duty. It holds 300 gallons in a compact 35-inch by 35-inch footprint and stands 82 inches tall. That 35-inch width clears a standard 36-inch doorway, and the 82-inch height needs roughly seven feet of vertical clearance, so it drops into tight pump houses, equipment rooms, and corner installations where floor space is limited but headroom is available. It is molded in natural white resin.
Will it work for your install?
This is a crosslinked linear polyethylene (XLPE) tank rated to a 1.9 specific gravity, meaning the wall is engineered to safely hold contents up to 1.9 times the density of water. Filled with plain water the load is about 2,502 pounds; at the full 1.9 SG rating the tank is built to carry up to 4,754 pounds of contents. Size that heavier number into your slab or stand from the start. Because XLPE cannot be re-welded or heat-repaired the way single-wall HDPE can, its strength comes from the molded-in crosslinked wall, so it earns its keep on heavier, higher-density liquids rather than plain water alone. If you are weighing crosslinked against standard polyethylene, our Snyder XLPE vs HDPE guide covers when crosslinking actually matters. As a 300-gallon vertical storage tank it is a common choice for fire-water reserve; the NFPA 22 fire-water reservoir guide walks through sizing and freeze protection for that duty.
Fittings and access
Per the technical drawing on this page, the tank carries five outlets: a flange, two 6-inch by 6-inch fittings (one flat-mount), an 8-inch PE threaded and vented fitting, and a manway with 8-inch access for filling, cleaning, and inspection. The vented port matters — a sealed poly tank drawn down by a pump can pull a vacuum and collapse, and the vent prevents that. XLPE resin itself is inert, so the seal is the failure point: match the gasket and bulkhead material at the 8-inch threaded port and the 6x6 flanged fittings to the actual liquid you plan to store. Confirm each fitting size and position against the technical drawing before you plumb, and dial in capacity with our Tank Sizing Calculator and Tank Sizing Guide.
The mistake to avoid
The most common error on a 300 gallon vertical XLPE tank is under-building the foundation. Set a level, fully supporting pad rated for the loaded weight — up to 4,754 pounds at the tank's maximum rating, not just the 2,502-pound water weight. An above-ground poly tank needs continuous, flat support under its entire base; our concrete pad sizing guide covers the ACI framework for getting that slab right. If freeze exposure is a factor, plan freeze protection before the first cold snap.
This vertical storage tank ships LTL from the Snyder plant in Lincoln, Nebraska, with freight quoted live to your ZIP. Get an exact number with our Freight Cost Estimator, or call 866-418-1777 to confirm fittings, lead time, and delivery. Listed before freight — freight is quoted separately to your delivery ZIP.
