The WRCGV12-2145-2152.5-2157.5-2165-80-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.1525 to 2.1575 GHz, Bandwidth 5 MHz, Insertion Loss 1 to 2.5 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-2145-2152.5-2157.5-2165-80-3 can be seen below.