The Aprilaire 4079 includes the ¼" tubing 16¼" length, compression fitting, plastic ferrule. blue orifice
, and strainer
This tubing connects to the solenoid
and feeds water to the water distribution tray
. Used in the Aprilaire 350 and 360. Also used in the Aprilaire 440.The Blue orifice is sized to deliver 6 gph. As shown in photo.