The HRMA-CF- 10-12 from HRmicrowave is a Band Pass Filter with Frequency 10 to 12 GHz, Insertion Loss 1.5 dB, Upper Rejection 50 dB, Lower Rejection 60 dB, Return Loss 15 dB. Tags: Module with Connectors, Combline Filter. More details for HRMA-CF- 10-12 can be seen below.