The BPF-C450 from Mini Circuits is a Band Pass Filter with Frequency 400 to 510 MHz, Bandwidth 110 MHz, Center Frequency 450 MHz, Insertion Loss 0.80 to 0.86 dB, Rejection 20 dB @ 310 and 700 MHz. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for BPF-C450 can be seen below.