Snyder Industries 90 Gallon HDPE Vertical Liquid Storage Tank with ASTM Certification

The Snyder Industries 90 Gallon HDPE Vertical Liquid Storage Tank is a compact, ASTM-certified vertical storage tank built for water and general liquid duty where floor space is tight. It stands 41 inches tall on a 34 x 34 inch footprint, holds 90 gallons, and is molded from polyethylene to a 1.9 specific gravity rating. That SG number is the one worth understanding before you buy: at full water this tank carries roughly 751 pounds of contents, while the 1.9 SG structural rating means it is engineered to safely hold up to about 1,426 pounds. For water service that is generous structural headroom, and 1.9 is the heaviest-rated tier Snyder offers in this body, so there is no higher-rated version to step up to.

Will it work for your install?

Spec it by footprint first. At 34 x 34 inches and 41 inches tall, this vertical tank slots into pump houses, equipment skids, and corners where a wider tank will not fit, while the 90-gallon volume covers day-tank, batch, and rural fire-water reservoir roles. The technical drawing on this page shows the molded openings: a flange, a threaded/vented PE fitting, and a manway with 11-inch access for filling, inspection, and cleaning. Note that the threaded-fitting size on the drawing is shown in shorthand, so confirm the exact thread size against the drawing (and with us) before you plumb it. Plan your fittings and pad around those locations before delivery. If you are still right-sizing volume against your draw rate or refill cycle, run the numbers with the Tank Sizing Calculator and the Tank Sizing Guide, then set it on a properly sized base — our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework.

HDPE wall, ASTM sizing, and the mistake to avoid

This is an HDPE tank rated to ASTM standards, and the most common sizing error on a tank this size is treating the full-water weight as the design ceiling. It is not. The 1,426-pound rated contents figure and the 1.9 SG rating are what govern your pad, anchoring, and seismic detailing — design to that ceiling, not to the 751-pound water number. The other thing operators miss is where polyethylene tanks actually fail first: the vapor-saturated headspace above the liquid line, not the wetted lower wall. Our breakdown of HDPE tank wall thickness at the vapor-saturated headspace explains why liquid-side inspection misses early degradation and how the ASTM D1998 sizing logic ties to it. If this unit is destined for rural or remote fire-protection duty, the fire-water reservoir tank design guide covers NFPA 22 sizing and cold-climate freeze protection.

Freight and ordering

This tank ships LTL freight from the Snyder plant in Marked Tree, Arkansas, on a pallet, with the carrier quoted live to your ZIP code rather than bundled into the list price. Get an exact number in seconds with our Freight Cost Estimator, or call 866-418-1777 and we will quote freight, confirm the fitting layout against the technical drawing, and verify lead time from Marked Tree before you order. Whether you are searching for a vertical storage tank, an HDPE vertical tank, or a Snyder vertical tank for water service, this 90-gallon unit is the small-footprint option that does not give up structural rating.