Complete Drain Line Flow Control (DLFC) Assy.  This is the current style, which was introduced mid-2022, but can be used on earlier Signature 3 units as well.

• Includes:
• Flow control housing with 1/2" male NPT threads
• O-rings
• 1/2" NPT x 1/2" barbed drain line elbow fitting
• Retainer Clip
• Flow control button (select size)*

*If you aren't sure which size flow control button you need, check the sticker on your injector cap, and it should specify a "DLFC" number