The Snyder Industries 300 Gallon HDPE Vertical Liquid Storage Tank is a 300-gallon, white, high density linear polyethylene tank carrying ASTM D1998 certification, standing 51 inches tall on a 46 by 46 inch footprint. It carries a 1.9 specific gravity rating, unusually high for a vertical storage tank in this size, which means the wall is engineered to hold liquids heavier than water without a sizing penalty. For irrigation supply, rainwater, or a fire-water reserve, this is a tank with real margin to spare.
Will it work for your site?
Filled with water, the tank holds about 2,502 pounds of liquid. Because the 1.9 specific gravity rating allows for denser contents, the maximum rated contents weight climbs to 4,754 pounds, so on plain-water duty the structure is nowhere near its limit. That same headroom is a buying reason in its own right: this tank handles dense solutions like brine and liquid fertilizer that many 300-gallon "water" tanks rated to 1.0 or 1.5 cannot hold at full volume without a sizing penalty. Plan your pad accordingly, because the 46 by 46 inch footprint concentrates that load, so a level concrete or compacted base sized to the full footprint keeps the tank stable and within its rating. At 51 inches tall it clears most low-clearance roofs and rides on trailers without special handling. If you are sizing for demand rather than a fixed gallon count, run the numbers through our Tank Sizing Calculator, read the Tank Sizing Guide, and use our 300-gallon vertical tank buyer's guide for general sizing context at this capacity before you commit.
The mistake to avoid
Wall thickness on an HDPE tank is not uniform top to bottom, and the thinnest, most vapor-exposed section near the upper sidewall is where premature failures tend to start, not the liquid-filled lower wall most people inspect. The 1.9 specific gravity rating matters even on water service because it reflects extra wall margin built into this tank. Our guide on HDPE tank wall thickness at the vapor-saturated headspace walks through where to look during inspection and the ASTM D1998 sizing logic behind it. If this tank is going into a rural or remote fire-protection role, the fire-water reservoir design guide covers NFPA 22 sizing and freeze protection for cold climates, and if you are weighing a double-wall containment setup, the Snyder Captor freeboard sizing guide explains freeboard and thermal-expansion math per ASTM D1998.
Freight
This tank ships LTL freight from the Snyder plant in Marked Tree, Arkansas, the nearest origin for this SKU, with the cost quoted live to your ZIP code. Get an exact number through our Freight Cost Estimator before you order, or call 866-418-1777 and we will quote it for you. Confirm the 51-inch height and 46 by 46 inch footprint against your gate, door, and pad before it leaves Arkansas.
