RS-2 Square Drive Adapter Hub

RS-2 Rising Stem Square Drive Adapter Hub, used primarily in water valve applications, bolts into the RS-2's 4in (101.6mm) open head and incorporates a 1in (25.4mm) square drive hub, allowing interface with standard 1in (25.4mm) square telescoping and non-telescoping valve keys or P-2 drive sockets.

The RS-2 Square Drive Adapter Hub's removable design allows the RS-2 to serve double duty, as a rising stem operator, and as a handheld exerciser similiar in function to the P-2 valve exerciser.