The Chem-Tainer 2100 gallon vertical liquid storage tank is an HDPE storage tank built for high-volume water and liquid holding where you need real capacity in a compact 87-inch square footprint. Molded in natural white polyethylene, it stands 87 inches tall and 87 inches in diameter, delivering 2,100 gallons of usable volume without sprawling across your pad. This is a workhorse vertical tank for fresh-water storage and general liquid storage, and the 2100-gallon line is offered in more than one footprint - this SKU is the 87 x 87 version, so confirm you are ordering the dimensions that fit your site.
Will it hold what you need it to?
Filled to 2,100 gallons of water, this tank carries roughly 17,514 pounds of contents, so plan your pad for that load before you place it. The tank is rated to a 1.9 specific gravity - unusually high for a water vertical, where 1.0 to 1.5 is typical. That rating means the wall is built to carry liquids substantially heavier than water: at the maximum rated specific gravity the contents can reach about 33,277 pounds. In practical terms, this tank doubles as a brine- or heavy-liquid-capable vessel without stepping up to a more expensive tank, and for plain water storage you are well within the envelope. Use the Tank Sizing Calculator and our Tank Sizing Guide to confirm this 2100-gallon size matches your draw-down and refill cycle before you order.
The mistake to avoid
The most common error on a tank this size is treating the specific gravity rating as a chemical clearance - it is not. The 1.9 SG rating tells you the tank can structurally carry a heavy liquid; it says nothing about whether a given liquid is compatible with the HDPE wall or with the gaskets and fittings you install. Fittings and gaskets are specified separately from the tank, and each must be chemically matched to what you store - so if you are considering anything other than water, confirm material compatibility against the manufacturer's chemical-resistance chart first, or call us at 866-418-1777 and we will help you check. The second mistake is underbuilding the base. Design the pad for the worst case you will actually store - up to 33,277 pounds at full 1.9-SG load, not just the 17,514-pound water figure - and set the tank on a level pad that fully supports the entire bottom, not a ring or partial support.
How it ships
This Chem-Tainer vertical tank ships LTL freight from the Hanford, California plant, the nearest named production point for this SKU, with freight quoted live to your delivery ZIP. Because a tank this size moves as oversized LTL, the rate depends heavily on your location and delivery conditions, so get an exact number before you commit - run your ZIP through our Freight Cost Estimator or call 866-418-1777 and we will quote it for you. Listed price is before freight; freight is quoted separately to your ZIP.
For more on specifying a tank this size, see the 2100 Gallon Vertical Liquid Storage Tank buyer's guide (note the 2100-gallon line comes in multiple footprints) and our Snyder vs Norwesco vs Chem-Tainer 2000 gallon vertical comparison. If you are planning a fire-water reserve or cold-climate service, the fire-water reservoir design guide walks through NFPA 22 sizing and freeze protection. Review the technical drawing on this page for fitting locations and dimensional detail before you finalize your installation. Questions on this vertical HDPE storage tank? Call 866-418-1777.
