The WRCD20-1950.5-1952.5-1967.5-1969.5-40-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.9525 to 1.9675 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 WRCD20-1950.5-1952.5-1967.5-1969.5-40-3 can be seen below.