The RMFI.1043-1052Sf from Response Microwave Inc is a Band Pass Filter with Frequency 1043.8 to 1052 MHz, Insertion Loss 2 to 5 dB, Rejection 50 to 55 dB, Upper Rejection 50 to 55 dB, Lower Rejection 50 to 55 dB. Tags: Module with Connectors. More details for RMFI.1043-1052Sf can be seen below.