The Chem-Tainer 300 Gallon Vertical Liquid Storage Tank (SKU TC3581IC) is a 1.5 specific-gravity polyethylene tank built for straight liquid storage in a compact footprint. It stands 85 inches tall and fits a 35 x 35 inch square footprint, so it holds a serious volume without sprawling across your pad. If you have been pricing a 300 gallon vertical tank or a 300 gallon storage tank, this is the size class you are looking at.
Will it work for your liquid?
This tank carries a specific-gravity rating of 1.5, which means the polyethylene wall is engineered for liquids heavier than plain water. Filled with water (SG 1.0), the contents weigh about 2,502 lb at the full 300 gallons; at the tank's full 1.5 SG rating the contents can reach roughly 3,753 lb. Use those numbers when you spec the slab, ring, or stand underneath it - the pad has to carry the loaded weight, not the empty shell. That 1.5 rating is also a buy-once advantage: because the wall is overbuilt for water, you can later switch to a heavier liquid (up to 1.5 SG) without changing tanks, so spec for the heaviest fluid you might ever store. The footprint is 35.0 x 35.0 inches, and it is made from FDA-compliant polyethylene per the spec sheet. To confirm this is the right capacity for your draw-down and refill cycle, run the Tank Sizing Calculator or read the Tank Sizing Guide.
Fittings and what to confirm before you order
Fitting configuration is not listed in this tank's spec record, so confirm the parts you need by phone at 866-418-1777 before you order - do not assume a port location or thread size from the photo. Match your bulkhead fitting, its gasket, outlet thread size (NPT), and lid size to your application, and remember that the gasket - not just the tank wall - governs fluid and temperature compatibility, so confirm both are rated for your liquid and its SG. See the technical drawing on this page for the dimensional layout. The mistake to avoid on a vertical tank this tall is mounting it on an uneven or undersized base: at 85 inches of height over a 35-inch footprint, a loaded tank is top-heavy and must sit dead level on a full-contact pad sized for the rated weight.
How it ships
This tank moves by LTL freight, quoted live to your ZIP code. We ship from the nearest stocking plant - Bensenville, IL; Hanford, CA; Hummelstown, PA; Lake Wales, FL; or Marked Tree, AR - so your freight cost depends on which location is closest to you. Get a real number before you buy with the Freight Cost Estimator, or call 866-418-1777 and we will quote it for you.
Comparing this size across brands? Our 300 Gallon Vertical Liquid Storage Tank buyer's guide walks through the decision, and the Snyder vs Norwesco vs Chem-Tainer 2,000-gallon vertical comparison covers how the major vertical-tank lines stack up. For a full freight quote to your address, use the Freight Cost Estimator or call 866-418-1777.
