JOHN GUEST PUSH FIT ASV4 - ISOLATION VALVE - 3/8" OUTLET.
This is a John Guest ASV4 Isolation valve, it is a 15mm x 15mm continuous T fitting with a 3/8" lever operated outlet, it can be used to fit inline of a cold water supply pipe giving an outlet to accept a 3/8" pipe, be it copper or plastic, the on/off operation can be controlled by a small built in lever.
