The Snyder Industries 300 Gallon ASTM Black Heavy Duty Vertical Storage Tank is a 300-gallon polyethylene vertical storage tank built for straightforward bulk water storage where you need real capacity in a compact 36-inch square footprint. It stands 82 inches tall on a 36 x 36 inch base, and the heavy-duty wall carries a 1.9 specific gravity rating - well above what plain water at a specific gravity of 1.0 demands, which is why this tank holds up under years of static load. Below is what it holds, how it ships, and the one sizing detail to get right before you order.
What this 300 gallon vertical tank handles
Filled to capacity with water, the contents weigh roughly 2,502 pounds, while the structure is rated to carry up to 4,754 pounds of contents - the margin that comes from that 1.9 specific gravity rating. Practically, you are buying more wall than water storage strictly requires, and that buffer is what leaves headroom for denser fluids down the road without stressing the shell. The tank uses two fittings, both shown on the drawing: a 10-inch polyethylene fill cap on top that handles your fill and vent path, and a flange lower on the shell that serves as the outlet you draw from. The flange is a bulkhead-style port, not a threaded boss, so it needs its gasket properly seated and torqued per the technical drawing to seal - confirm placement and outlet elevation on that drawing before you set plumbing height. To match this vertical tank to a daily draw or reserve target, run your numbers through our Tank Sizing Calculator or read the Tank Sizing Guide. Because this is an ASTM tank, the freeboard and thermal-expansion sizing covered in our ASTM D1998 freeboard sizing guide explains how much of the 300 gallons you can actually put to work.
Footprint, siting, and pad
At 36 x 36 inches, this tank drops onto a compact pad, but 82 inches of height with over 2,500 pounds of full water weight makes a level, continuous base non-negotiable. A poured pad sized to the full footprint keeps the base fully supported and prevents the point-loading that cracks tank floors over time - our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI framework. If this is headed into cold-climate or fire-reserve service, the fire-water reservoir design guide covers reserve sizing and freeze protection.
The mistake to avoid
The most common ordering error on a tall, narrow black vertical tank like this is treating the 82-inch height as a delivery afterthought. Measure both the 36-inch square base and the 82-inch height against your doorway, gate, and install clearance before it arrives, because the height is what catches people at final placement. And do not over-spec against the 1.9 rating for plain water - that margin is your safety buffer, not a target to fill toward with heavier liquids.
This 300 gallon vertical storage tank ships LTL freight from the Snyder plant in Chowchilla, California, quoted live to your ZIP code. Because it ships from California, distance drives the LTL cost, so if you are farther east, run your ZIP through our Freight Cost Estimator before you commit to see the real number. Or call 866-418-1777 and we will quote it by phone and confirm access for the 82-inch height. Freight is quoted separately from the tank price.
