The Aprilaire 4079 includes the ¼" tubing 16¼" length, compression fitting, plastic ferrule. nozzle
, 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.