The WTRCJV8-5250-5350-20-100-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 5.25 to 5.35 GHz, Bandwidth 20 MHz, Insertion Loss 2 dB, Rejection 50 dB, Return Loss 12 dB. Tags: Module with Connectors, Cavity Filter, Notch Filter, Tunable Filter. More details for WTRCJV8-5250-5350-20-100-50 can be seen below.