Universal Humidifier Solenoid, Voltage:24, Replaces: Aprilaire 4040, General 990-53, Honeywell 32001639-002, Skuttle A01-0814-148, Includes: 1/4" Compression X 1/8" MPT. With Filter Screen, 1/8" MPT X 1/4" Compression, 1/4" Insert(For Plastic Tube), 1/4" Delrin Sleeve(For Plastic), 3/16" Barb X 1/8" MPT., 1/8" MPT. X 5/16 Compression, To Reverse Flow, Remove Bracket Screws and Turn 180, In Blister Pack, Made In China.(Alt SSUHS24)