The WRCJV8-5210-5240-5260-5290-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 5.24 to 5.26 GHz, Bandwidth 20 MHz, Insertion Loss 1.5 to 2.25 dB, Rejection 50 dB, VSWR 1.67:1. Tags: Module with Connectors, Cavity Filter. More details for WRCJV8-5210-5240-5260-5290-50 can be seen below.