The WRCTV10-413-420-430-437-80-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 420 to 430 MHz, Bandwidth 10 MHz, Insertion Loss 1.5 to 1.75 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCTV10-413-420-430-437-80-2 can be seen below.