1 1/2" TEST AND DRAIN ELO W/PRV

Inspector's Test Ball Valve with Sight Gass and ELO Orifice The Inspector'sTEST Model 3011SG with sight glass is a 300 PSI rated ball valve designed to perform the remote inspector's test function on single-story and other applications with the benefit of locating the orifice indoors. The sight glass option saves time witnessing flow from the exterior of the building.