Steel Retort Ring, Closed, Used to support glass flasks, beakers, and other labware, available in a variety of sizes, Each

Details:

Eisco Labs' plated steel retort ring has a closed stem. It measures approximately 10.5 inches in total length, with a stem length of 5.75 inches, an internal diameter of about 4.25 inches, and a stem diameter of 0.25 inches.