The WRCT16-858-860-875-877-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 860 to 875 MHz, Insertion Loss 1 to 2 dB, Rejection 40 dB, VSWR 1.50:1, Center Frequency 867.5 MHz. Tags: Module with Connectors, Cavity Filter. More details for WRCT16-858-860-875-877-40 can be seen below.