The WRCT10-2643.5-2647.5-2662.5-2666.5-40-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.6475 to 2.6625 GHz, Bandwidth 15 MHz, Insertion Loss 1.25 to 2 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT10-2643.5-2647.5-2662.5-2666.5-40-1 can be seen below.