The WRCT10-2653.995-2656.375-2657.625-2660.005-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.656375 to 2.657625 GHz, Bandwidth 1.25 MHz, Insertion Loss 1.25 to 1.75 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT10-2653.995-2656.375-2657.625-2660.005-50 can be seen below.