Watts LF777M1 06 1 Part of the LF777 Series geogrid and optional depths are available and optional depths are available to suit varying piping inverts This 3 4 inch residential purge and balancing valve is used in heating applications to facilitate removal of air from heating zones on initial fill and to control water flow through a circulation loop Specifications Blowdown Outlet Connection Female Threaded Body Material Lead Free Cast Copper Silicon Alloy Body Pattern Wye Brand Watts Buy American Act Compliant NO EAN 098268654028 Gasket Material Garlock Inlet Connection Size 1 IN Inlet Connection Size Metric 25 MM Inlet Connection Type Female Threaded Inlet Thread Type NPT Lead Free YES Outlet Connection Size 1 IN Outlet Connection Type Female Threaded Outlet Thread Type FPT Part Number 0123103 Retainer Cover Material Lead Free Copper Silicon Alloy Retainer Cover Type Gasketed Cap Screen Material Stainless Steel Screen Size ONE_SIXTEENTH Series LF777 Strainer Type Wye Specification Sheet LF777 and other damaging debris in the piping system