The BPF-750-500-L12e from COTS RF is a Band Pass Filter with Frequency 500 to 1000 MHz, Bandwidth 500 MHz @ 1 dB, Center Frequency 750 MHz, Insertion Loss 1 dB, Rejection 50dB @ 250 & 1350 MHz. Tags: Module with Connectors. More details for BPF-750-500-L12e can be seen below.