The Snyder Industries 120 Gallon HDPE Vertical Liquid Storage Tank is a Merced, California-built polyethylene tank measuring 39 inches tall on a compact 32 x 32 inch footprint, rated to a 1.9 specific gravity and certified to ASTM standards. That tall, narrow profile wins over a sprawling horizontal in tight equipment rooms, pump houses, and skid layouts. If you are sizing a vertical storage tank for water or general liquid service and want a durable white HDPE body with real density headroom, this is the size class to look at.
Plan support for up to ~1,902 lb loaded, not the empty tank weight.
Will it work for your install?
Filled with water this tank carries roughly 1,001 pounds, and at its full 1.9 specific gravity rating it is built to hold up to 1,902 pounds of contents - all landing on a 32.0 x 32.0 inch footprint. A full vertical tank concentrates real load on a small area, so a level, load-rated base is not optional. Match your plumbing to the ports already molded into the tank and you skip adapters and field rework. Run the numbers against your actual draw and refill cycle with the Tank Sizing Calculator and our Tank Sizing Guide before you order.
Fittings (per drawing)
The technical drawing on this page calls out a top flange, a 10-inch polyethylene threaded port, a cap with a 7-inch access opening, and a bulkhead fitting (size confirmed on the drawing). The 10-inch threaded port and the bulkhead seal on gaskets - match gasket material to your liquid before first fill, and verify every port location against your inlet, outlet, and vent runs. Confirm those sizes on the drawing rather than assuming a thread spec.
Specs and density headroom
White HDPE construction, 120 gallon nominal capacity, 39 inches high, 32 inches in both width and length. The 1.9 SG rating means the wall is engineered for liquids substantially heavier than water - covered for many fertilizer solutions, brines, and other dense liquids at this size class, with margin to spare for plain water or light-density storage. That is why this style of vertical HDPE storage tank shows up in pump houses, ag buildings, and rinse stations alike. For the chemistry and freeboard math behind heavier-than-water service, see the Snyder freeboard sizing per ASTM D1998 guide, and for where wall thickness matters most over a tank's life, our guide on HDPE tank wall thickness and ASTM D1998 sizing logic.
The mistake to avoid
The most common ordering error on a small vertical like this is underestimating fill weight. A 120 gallon tank looks modest, but at full water you are setting nearly half a ton on a 32-inch square, and at the 1.9 rated density that climbs toward a full ton. Stands, mezzanines, and trailer decks get specified for the empty tank and then overloaded at fill. Size the support for the loaded weight, verify the base is dead level, and keep the load centered on the footprint rather than racking the wall.
This tank ships LTL freight from the Snyder plant in Merced, California, with freight quoted live to your ZIP - get a real number in seconds with our Freight Cost Estimator, or call 866-418-1777 to talk through fittings, lead time, and delivery. Listed price is before freight.
