The WRCD20-1910.5-1912.5-1927.5-1929.5-40-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.9125 to 1.9275 GHz, Bandwidth 15 MHz, Insertion Loss 2 to 3.5 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCD20-1910.5-1912.5-1927.5-1929.5-40-3 can be seen below.