The WRCT10-2650-2652.5-2657.5-2660-50-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.6525 to 2.6575 GHz, Bandwidth 5 MHz, Insertion Loss 1.25 to 3 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT10-2650-2652.5-2657.5-2660-50-2 can be seen below.