The WRCT20-1885.5-1887.5-1912.5-1914.5-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.8875 to 1.9125 GHz, Bandwidth 25 MHz, Insertion Loss 2.25 to 4.5 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT20-1885.5-1887.5-1912.5-1914.5-40 can be seen below.