The Chem-Tainer 100 Gallon HDPE Vertical Liquid Storage Tank is a tall, narrow-footprint vessel for liquid storage where floor space is tight. It stands 64 inches high on a 23 x 23 inch base, holds 100 gallons of natural white polyethylene capacity, and carries a 1.9 specific gravity rating - one of the heavier weight ratings you will find in a 100 gallon vertical storage tank.
Will it work for your liquid? Start with the 1.9 SG rating
The 1.9 specific-gravity rating is the headline reason to choose this model over a standard 1.0 or 1.1 SG water tank. Filled with plain water this tank carries roughly 834 pounds; the wall and floor are engineered to support up to 1,585 pounds of maximum rated contents weight. That weight headroom is what separates this HDPE vertical from a lighter-rated 100 gallon tank - the polyethylene is built to hold heavier liquids without the wall stress that thinner-rated tanks accumulate over time. The 23 x 23 inch footprint tucks into a corner, against a wall, or onto a pallet, while the 64-inch vertical profile keeps the liquid column tall and compact. If you are matching a tank to a known fill volume and contents weight, run the numbers through our Tank Sizing Calculator and read the Tank Sizing Guide before you commit to a size.
Reading the tank before you plumb it
See the technical drawing on this page for the outlet and fitting layout and the confirmed dimensions on this 100 gallon HDPE vertical storage tank. Specific fitting and gasket sizes are not published in our spec data for this model, so read them off the on-page drawing and match them to your bulkhead, gasket, and plumbing before installation rather than assuming a thread size. The natural white translucency lets you eyeball the liquid level from outside without opening the lid - a practical advantage for daily-use storage. Because Chem-Tainer builds this as a stock vertical storage tank, what you see in the drawing is what ships.
The mistake to avoid on a tall, narrow tank
The most common error with a 64-inch-tall, 23-inch-wide tank is forgetting how top-heavy it gets when full. The pad has to fully support the entire 23 x 23 inch (529 square inch) base and be rated for the full 1,585 pounds of maximum contents weight, because the floor - not the wall - carries the load. Never set a narrow-base vertical on uneven ground, blocks, or a partial stand. The second mistake is treating the 1.9 SG rating as a license for any liquid: the rating governs weight capacity, not chemical compatibility. For anything beyond water, confirm material compatibility against the manufacturer's chemical-resistance chart first. If you are storing water for rural or remote fire protection, our fire-water reservoir tank design guide walks through NFPA 22 sizing and freeze protection for a tall polyethylene vertical like this one.
This tank ships LTL freight from the nearest Chem-Tainer plant - Hanford, CA or Marked Tree, AR - with the rate quoted live to your ZIP code. Get an exact number through our Freight Cost Estimator, or call 866-418-1777 and we will quote it for you. For more on matching wall thickness and sizing to real service conditions, see our guide on HDPE tank wall thickness and ASTM D1998 sizing logic.
