The WRCTG12+16-2558-2568-2618-2628-75 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.568 to 2.618 GHz, Bandwidth 50 MHz, Insertion Loss 2 to 2.75 dB, Rejection 75 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCTG12+16-2558-2568-2618-2628-75 can be seen below.