The WVX-412P422-5a810 from Wevercomm is a RF Duplexer with Frequency 410.37 to 415.37 MHz / 420.37 to 425.37 MHz, Band 1 410.37 to 415.37 MHz, Band 2 420.37 to 425.37 MHz, Power 3 W, Insertion Loss 3.6 dB. Tags: Ceramic, Surface Mount. More details for WVX-412P422-5a810 can be seen below.