Chem-Tainer 14 Gallon Plastic Open Top Batch Storage Tank with Cover

The Chemtainer 14-gallon open-top batch storage tank (SKU R121815A) is a compact rectangular vessel built for small-batch mixing, transfer, and staging where you need to see into and reach inside the tank. It holds 14 gallons in an 18" long by 12" wide footprint and stands 16" tall, so it fits on a bench or in a tight corner of a wash bay, lab, or batch line. The tank is molded from natural white polyethylene, weighs just 11 lbs empty — one person can reposition it before filling — and comes with a loose cover plus a 5" lid opening for adding product, stirring, or dropping in a small pump or mixer. It carries FDA Approved and NSF 61 listings and is rated to a maximum contents temperature of 120° F (48° C).

Will it hold your batch

Sizing is the first thing to get right on an open-top tank. Filled with water, this tank carries about 117 lbs of contents, and the shell is rated for a specific gravity up to 2.0 — meaning it can safely hold roughly 234 lbs of denser liquid at full volume. That headroom is what lets an open-top batch tank handle heavier mixes than plain water without stressing the wall, but read the two derating limits together: the 2.0 SG rating is valid only at or below the 120° F contents temperature. If you are matching this tank to a specific liquid or a specific fill height, run the numbers through our Tank Sizing Calculator and the Tank Sizing Guide before you order so the footprint and weight land where you need them.

How you fill and draw it

This is a top-access vessel — there is no factory outlet or bulkhead fitting. You fill and draw through the 5" top opening, so plan on a dip tube or a small transfer pump rather than a gravity drain. The 5" lid is an access and splash cover, not a gasketed or sealed connection, so it will not pressurize or contain a transport load. Keep that in mind when you lay out your batch line: this tank is happiest stationary, vented, and worked from the top.

The mistake to avoid

Open-top batch tanks tempt people to overfill, but the number that matters is specific gravity, not gallons. At the 2.0 SG rating this tank will carry a heavy slurry or concentrate at full volume, yet the cover is a splash-and-dust cover, not a sealed lid — do not treat it as a closed, pressurized, or transport vessel. Keep it stationary and vented, and confirm your liquid's SG stays at or under 2.0 at your working temperature. Searching for a 14 gallon Chemtainer open-top tank with cover usually means you want batch flexibility, and this vessel gives you that as long as the weight math checks out.

This tank ships LTL freight, quoted live to your ZIP, from the nearest stocking plant — for many orders that is Delano, MN, with additional stock points in Illinois, New York, and Pennsylvania. Get a real number with our Freight Cost Estimator, or call 866-418-1777 and we will quote it by phone. See the technical drawing on this page for exact dimensions and the lid layout before you finalize your setup.