The BP2-6A from PLEXSA MANUFACTURING is a Band Pass Filter with Frequency 2 to 6 GHz, Insertion Loss 2.0 to 2.4 dB, Rejection 20 to 60 dB, Upper Rejection 60 dB @ DC to 18 GHz, Lower Rejection 20 dB @ 1.88 GHZ. Tags: Module with Connectors. More details for BP2-6A can be seen below.