The Chem-Tainer 4500 Gallon HDPE Vertical Liquid Storage Tank is a large-volume vertical storage tank built for high-density liquid service. It stands 156 inches tall on a 156-inch-diameter base, holds 4,500 gallons, and carries a 1.9 specific gravity rating - the number that determines whether this tank is right for what you are storing.
Will it work for your liquid?
This is a natural white HDPE (high-density polyethylene) tank rated to 1.9 specific gravity. At 1.9 SG this is the heavy-rated grade - it covers dense fertilizers, brines, and concentrated solutions that a standard water-grade vertical tank cannot safely hold. That rating means the wall is built to carry a contents density up to 1.9 times that of water. Full of plain water the contents weigh roughly 37,530 lbs; at the maximum rated 1.9 specific gravity the tank is engineered to hold up to 71,307 lbs of liquid. If your liquid is denser than water, confirm its specific gravity against the 1.9 rating before you order. Exceeding the rating is the single most common sizing mistake on a tank this size, and it shows up as a stressed, bulging wall years into service rather than on day one. One more distinction to make: the 1.9 SG rating covers the tank wall, not the seals. Fitting sizes, locations, and gasket materials are shown on the technical drawing on this page - confirm the gasket elastomer suits your specific liquid before you finalize the order.
Sizing and siting a 4,500-gallon vertical
At 71,307 lbs fully loaded at rating, this tank puts real load on whatever it sits on. A flat, fully supporting pad sized for the 156-inch round footprint is not optional at this volume - the wall is designed to be supported continuously around its base. Our concrete pad sizing guide walks through the ACI 360R-10 framework for above-ground polyethylene tanks, and the Tank Sizing Calculator and Tank Sizing Guide help you confirm 4,500 gallons matches your draw and refill cycle. A tank this size often lands in rural fire-water and reservoir duty; the fire-water reservoir design guide covers NFPA 22 sizing discipline and cold-climate freeze protection for that use. If wall longevity matters for your service, the HDPE wall thickness and ASTM D1998 sizing breakdown is worth reading before you buy.
Comparing vertical storage tanks
If you are weighing brands and want to understand how Chem-Tainer stacks up against the other major polyethylene vertical makers, the Snyder vs Norwesco vs Chem-Tainer vertical tank comparison covers the build, fitting, and rating differences that matter on a large vertical tank.
This tank ships LTL freight from Hummelstown, PA, and freight is quoted live to your ZIP - it is not included in the list price. Because it ships from a single PA plant, freight cost scales with distance, so pull your ZIP-specific number from our Freight Cost Estimator before comparing total freight cost, or call 866-418-1777. See the technical drawing on this page for fitting locations and full dimensional detail before you finalize your order.
