The Chem-Tainer 500 Gallon HDPE Vertical Liquid Storage Tank (SKU TC4676IA) is a 500 gallon vertical storage tank molded in natural white polyethylene, standing 76 inches tall on a 46 x 46 inch footprint. It carries a 1.9 specific gravity rating - the spec that decides whether a tank fits your liquid - and that rating gives you real headroom for contents denser than water.
Will this 500 gallon tank work for your liquid?
The vertical footprint keeps floor space tight for a 500 gallon capacity. Filled with water, the contents weigh about 4,170 lb; the 1.9 SG rating means the tank is built to hold contents up to roughly 7,923 lb, so denser liquids than water are within the design. That ceiling is the SG math, not marketing: 500 gallons multiplied by 8.34 lb and by the 1.9 rating lands right at 7,923 lb. To plan a specific liquid, run your own number the same way - 500 x 8.34 x your liquid's specific gravity - and stay under the rated weight. The Tank Sizing Calculator and the Tank Sizing Guide walk through that math if you want to confirm before you order.
Specs, drawing, and fittings
This listing does not specify outlet thread sizes or gasket types in its data - those are defined on the technical drawing on this page, which is the authority on port placement and height under the fill opening. Check the drawing against your pad and plumbing run before you buy, and verify the bulkhead and outlet locations against the drawing rather than assuming a thread size. Set this HDPE vertical storage tank on a smooth, fully supporting level base sized to the full 46 x 46 inch footprint; polyethylene tanks carry their load through the floor, not the sidewall, and a partial or uneven base is the most common avoidable mistake on a tank this tall. If you want to understand why a tall vertical HDPE tank is molded with varying wall thickness up the sidewall, the HDPE tank wall thickness guide covers the ASTM D1998 sizing logic behind it.
One thing not to get wrong
The 1.9 SG rating is a maximum, not a guarantee for every liquid. A tank can be rated for the weight and still be the wrong material for a given chemistry - specific gravity covers the load, not corrosion resistance. For plain water, fire reserve, rainwater, or general liquid storage, this tank is squarely in its lane; if you are storing anything reactive, confirm the chemistry against an OEM chemical-resistance chart first. The 500 gallon vertical liquid storage tank applications guide covers the common uses, and if this is headed for rural fire protection, the fire-water reservoir design guide covers NFPA 22 sizing and freeze protection for cold-climate sites.
This tank ships LTL freight from the nearest of our Chem-Tainer plants - Bensenville, IL; Hanford, CA; Hummelstown, PA; or Marked Tree, AR - with freight quoted live to your ZIP. Get your number with the Freight Cost Estimator, or call 866-418-1777 and we will quote it for you and help confirm the right 500 gallon vertical tank for your site.
