The WRCT10-1917.5-1920-1925-1927.5-40-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.92 to 1.925 GHz, Bandwidth 5 MHz, Insertion Loss 1.25 to 2.5 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT10-1917.5-1920-1925-1927.5-40-2 can be seen below.