The PE8712 from Pasternack Enterprises Inc is a Band Pass Filter with Frequency 2.5 to 2.7 GHz, Bandwidth 200 MHz, Insertion Loss 1 dB, Rejection 50 dB at 1.7 GHz and 3.5 GHz, Power 5 W. Tags: Module with Connectors, Combline Filter. More details for PE8712 can be seen below.