The WRCT20-2522.5-2525-2545-2547.5-60-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.525 to 2.545 GHz, Bandwidth 20 MHz, Insertion Loss 2 to 5.5 dB, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT20-2522.5-2525-2545-2547.5-60-1 can be seen below.