Sorbent-Retaining Gauzes, Stainless-Steel (20 pack)

These stainless-steel, sorbent-retaining gauzes are located at either end of a metal tube and between each bed of sorbent. The primary gauze is accurately positioned in the groove of the tube to help define the 15 mm air gap required for diffusive sampling, enabling use of published uptake rates. The final gauze is retained with a gauze-retaining spring.