The WRCT10-1893.5-1897.5-1902.5-1906.5-60-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.8975 to 1.9025 GHz, Insertion Loss 1.25 to 2 dB, Rejection 60 dB, VSWR 1.50:1, Center Frequency 1.9 GHz. Tags: Module with Connectors, Cavity Filter. More details for WRCT10-1893.5-1897.5-1902.5-1906.5-60-2 can be seen below.