The WRCD20-1916.5-1917.5-1922.5-1923.5-40-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.9175 to 1.9225 GHz, Bandwidth 5 MHz, Insertion Loss 2 to 4 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCD20-1916.5-1917.5-1922.5-1923.5-40-2 can be seen below.