Adapter, Vacuum Shut Off

A 0-20mm Chem-Vac™ Chem-Cap® valve having a #20 o-ring joint for connection to the AF-0300-04 trap assembly and a 1" OD lower arm for connection to the rubber vacuum tubing. Adapter is supplied complete with a #214 Viton o-ring for use with the #20 o-ring joint.