The WRCT40-1871.5-1872.5-1892.5-1893.5-50-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.8725 to 1.8925 GHz, Bandwidth 20 MHz, Insertion Loss 3.5 to 6.5 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT40-1871.5-1872.5-1892.5-1893.5-50-2 can be seen below.