The Chem-Tainer 2100 gallon vertical liquid storage tank is a polyethylene tank built for serious water volume, standing on an 87 by 87 inch footprint at 87 inches tall. Filled with plain water it holds 17,514 pounds of contents, but the real story is the shell rating: this is a 1.5 specific gravity tank, which means the wall is engineered to carry liquids up to 1.5 times the weight of water - a maximum rated contents weight of 26,271 pounds. If you have been searching for a vertical storage tank in the 2,100 gallon class, this is one of the larger single-tank options for bulk water holding, agricultural supply, rainwater collection, and fire-water reservoir duty.
Will this tank work for your site?
Start with the weight, because that dictates your pad and your handling plan. Run through this before you order:
- Pad: 17,514 pounds of water sits on the 87 x 87 inch footprint, so the base must be flat and fully supported - concrete or compacted material that carries the entire tank bottom, with no point loads or partial support.
- Capacity rating: the 1.5 specific gravity shell is heavier-duty than the common water-only 1.0 to 1.35 builds, so it covers denser fluids - brines, many liquid fertilizers, some chemical solutions - without stepping up to a more expensive tank. That headroom is the buying reason at this size.
- Access: confirm a truck can reach your pad, since this ships LTL from Hanford, CA.
For sizing the tank to your actual demand, run the numbers in our Tank Sizing Calculator and review the Tank Sizing Guide before you commit.
Fittings, seals, and the higher-SG capability
For exact outlet positions and overall dimensions, see the technical drawing on this page. Before you order, confirm the bulkhead fitting size, outlet location, and gasket or seal material against that drawing or by calling 866-418-1777 - and here is the part buyers miss: a 1.5 specific gravity polyethylene shell does NOT mean every gasket and fitting elastomer is chemically compatible with what you plan to store. The shell rating handles the weight of a denser liquid; it says nothing about whether the seal material resists that liquid. If you are storing anything other than water, verify the gasket elastomer is rated for your specific fluid before committing.
The mistake to avoid at 2,100 gallons
The most common error on a tank this size is confusing nominal capacity with physical dimensions. There is more than one 2,100 gallon vertical tank on the market, and they are not the same shape - some run taller and narrower, others wider and shorter. This unit is the 87 x 87 inch configuration. If your site, roof line, or canopy was measured for a different 2,100 gallon variant, those geometries are covered in separate buyer's guides - the 87 x 89 variant guide and the 102 x 69 variant guide. Confirm the diameter and height fit your space against this 87 x 87 listing so you order the footprint your site actually has room for.
Applications and a comparison worth reading
A 2,100 gallon vertical tank lands in a useful spot - large enough to be a real reserve, compact enough for a single delivery and a manageable pad. It is a frequent choice for stored fire-water reservoirs on rural and remote sites, where holding volume and freeze planning matter most; our guide on fire-water reservoir tank design walks through NFPA 22 sizing discipline and cold-climate protection. If you are weighing brands at this size, the Snyder vs Norwesco vs Chem-Tainer 2000 gallon comparison lays out the differences honestly.
This tank ships LTL freight from the Chem-Tainer plant in Hanford, CA, with the rate quoted live to your ZIP code. Get an exact number from our Freight Cost Estimator, or call 866-418-1777 and we will quote it for you and confirm site access for the delivery truck before it rolls.
