The AFBPF420BW340-001 from AWG Tech is a Band Pass Filter with Frequency 250 to 590 MHz, Bandwidth 340 MHz, Insertion Loss 2 dB, Rejection 30dBc@175MHz and 30dBc@800 MHz. Tags: Module with Connectors, Lumped Component Filter. More details for AFBPF420BW340-001 can be seen below.