The BPF-3175-1150-L9 from COTS RF is a Band Pass Filter with Frequency 2600 to 3750 MHz, Bandwidth 1150 MHz @ 3 dB, Center Frequency 3175 MHz, Insertion Loss 0.5 dB, Rejection 45dB @ 2400 & 3950 MHz. Tags: Module with Connectors. More details for BPF-3175-1150-L9 can be seen below.