The WRCT10-2126-2130-2135-2139-60-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.13 to 2.135 GHz, Bandwidth 5 MHz, Insertion Loss 1.25 to 2 dB, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT10-2126-2130-2135-2139-60-1 can be seen below.