This package includes a 3/4" Inlet replacement for the Franklin 3/4" Valve, part number #41613
To determine if your valve has a 1/2" or 3/4" inlet, compare the orifice size to a pencil tip. If the orifice is about the size of a pencil tip, your inlet is 1/2" BL104. If the orifice is about the size of a wooden pencil, your inlet is 3/4" inch, shown here.