The Snyder Industries 300 Gallon ASTM XLPE Black Heavy Duty Vertical Storage Tank is a crosslinked-polyethylene vertical storage tank built for demanding storage where a standard HDPE wall isn't enough. It holds 300 gallons in an 80-inch-tall body on a compact 35 x 35-inch footprint, so it fits tight pump sheds, equipment rooms, and corner installs while still giving you real usable volume overhead. The black XLPE construction carries a 1.9 specific gravity rating, which is where this vertical tank earns its keep against lighter-duty stock.
Will this tank work for your site?
Start with the weights, because they drive your pad and anchoring. Filled with water this tank carries roughly 2,502 pounds of contents; at its full 1.9 specific-gravity rating it is engineered to hold up to about 4,754 pounds of contents. That headroom is the practical compatibility gate on an XLPE tank: the wall is designed for liquids up to about 1.9 times the density of water, so check your liquid's specific gravity against that ceiling before you fill. The 35 x 35-inch footprint concentrates that load, so a level, full-contact concrete pad matters here. Our concrete pad sizing framework walks the ACI approach for above-ground polyethylene tanks, and the Tank Sizing Calculator and Tank Sizing Guide help you confirm 300 gallons is the right storage tank capacity before you commit.
Fittings and access
The technical drawing on this page shows the fitting layout so you can match it to your plumbing before ordering. Molded-in provisions include a manway with 15-inch access for interior reach, an 18-inch PE threaded vented lid, a flange, and a 6.5 x 6.5-inch fitting flat plus additional flat pad areas for adding outlets. Thread- and gasket-match each port against the drawing before you order so nothing is mismatched at install. Note that gallonage marks may be removed for fitting placement, so plan your outlet and bulkhead locations against the drawing rather than the molded volume markers.
XLPE vs standard polyethylene
The common mistake with a tank like this is treating crosslinked polyethylene and standard HDPE as interchangeable. They are not. XLPE is a crosslinked polyethylene rated to handle higher specific-gravity contents, which is exactly why this vertical storage tank is rated to 1.9 rather than the ~1.0 to 1.5 typical of a standard water tank. If you are weighing the two for a heavier-duty or chemistry-driven duty, read Snyder XLPE vs HDPE: when crosslinking matters before you decide. For rural fire-water reservoir sizing where XLPE verticals often fit, our fire-water reservoir design guide covers NFPA 22 discipline and freeze protection.
This tank ships LTL freight from the Snyder plant in Marked Tree, Arkansas, quoted live to your ZIP code — and at up to 4,754 pounds loaded, freight is your real cost driver, so get a number early. Pull a live quote in seconds with our Freight Cost Estimator, or call us at 866-418-1777 and we'll walk you through freight, fitting placement, and lead time. One Source Plastics ships this 300 gallon vertical XLPE storage tank nationwide.
