The WRCT40-1961.7-1962.5-1967.5-1968.3-50-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.9625 to 1.9675 GHz, Bandwidth 5 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 WRCT40-1961.7-1962.5-1967.5-1968.3-50-1 can be seen below.