Universal Humidifier Solenoid Valve - UHS24 This "generic" solenoid valve replaces the most popular 24 VAC humidifier valves and saves you money! This valve package includes an assortment of fittings which match OEM equipment from Aprilaire, Honeywell, GeneralAire and others.  The valve can be used with copper and plastic tubing.  Valve includes inline strainer (non replaceable) on the inlet side of the valve. This valve will replace most 24 volt humidifier solenoid valves, including the following: Aprilaire 4040 GeneralAire 990-53 Honeywell 32001639-002 Skuttle A01-0814-148 Includes the following fittings:(QTY 2) 1/4" Compression  X 1/8" MPT(QTY 1) 3/16" Barb X 1/8" MPT(QTY 1) 5/16" Compression X 1/8" MPT(QTY 1) 1/4" Insert for plastic tubing(QTY 1) 1/4" Delrin sleeve for plastic tubing