Complete Drain Line Flow Control Assy.

• Used on CSI Signature Series and WaterSoft Isobar 2 and 3 softeners and filters
• Includes:
• Flow control housing
• O-ring
• 1/2" NPTx1/2" barbed drain line elbow fitting
• 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