The Snyder Industries 120 Gallon ASTM Black Heavy Duty Vertical Storage Tank is a compact polyethylene vertical storage tank standing 39 inches tall on a 32 x 32-inch footprint, molded by Snyder to ASTM specification and rated to a 1.9 specific gravity. That 1.9 SG rating is the headline number: it means the tank wall is built to carry contents up to 1.9 times the density of water, well above a standard water-only vertical tank, which is exactly why buyers looking for a durable black heavy-duty vertical storage tank land on this model.
Will it work for your job
At 120 gallons, a full load of water weighs about 1,001 pounds, and the tank is rated to hold contents up to roughly 1,902 pounds at its 1.9 specific-gravity ceiling. Use those two numbers to plan your pad and anchoring: the 32 x 32-inch footprint concentrates that weight over a small area, so a load-bearing base matters. If you are still deciding on capacity, our Tank Sizing Calculator and Tank Sizing Guide walk you through matching gallons to your actual draw and refill cycle. The black exterior blocks light, which slows algae growth in stored water compared with translucent tanks.
Fittings and layout
The technical drawing on this page shows the molded-in fitting package: a flange, a 10-inch polyethylene-threaded lid/manway, a cap with a 7-inch access port, and a bulkhead (BH) outlet. Match your bulkhead gasket and thread or cam size to the fitting sizes called out on the drawing before you plumb the tank, since fitting placement and size drive how you tie into supply and drain lines on a vertical tank of this height. Confirm the outlet position against the drawing first.
Siting a heavy vertical tank
A tank carrying up to 1,900-plus pounds needs a flat, fully supported foundation. For above-ground installs, our guide on concrete pad sizing for above-ground polyethylene tanks covers the ACI framework for sizing that base, and if this tank is going into a fire-water or reserve role, the fire-water reservoir tank design guide covers cold-climate freeze protection and NFPA 22 sizing discipline.
This tank ships LTL freight from Snyder's plant in Merced, California, quoted live to your ZIP. Get an instant number with our Freight Cost Estimator, or call 866-418-1777 and we will quote it for you. Because freight is billed separately from the list price, your final freight charge depends on your distance from Merced, CA and your delivery-site access, so pull a ZIP quote before you order.
