The WRCTF12+9-2567.5-2570-2620-2622.5-50-4 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.57 to 2.62 GHz, Bandwidth 50 MHz, Insertion Loss 2 to 5 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCTF12+9-2567.5-2570-2620-2622.5-50-4 can be seen below.