Test and Drain 

Function: Forged brass Female x Female body with spring loaded position indicator with positive shut off. In-line flow with self-draining, clearable sight glass. Tamper-proof orifice permanently installed.

Model                      Size
6166                   3/4" / 1.9cm
6167                       1" / 2.5cm
6168                   1-1/4" / 3.2cm
6169                      1-1/2"/3.8cm
6170                            2"/5cm