The WBCDB3-433-452-455-474-50 from Wainwright Instruments is a Band Pass Filter with Frequency 452 to 455 MHz, Bandwidth 3 MHz, Center Frequency 453.5 MHz, Insertion Loss 0.5 to 0.6 dB, Rejection 50 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCDB3-433-452-455-474-50 can be seen below.