The 6MB/C-400/U112-18 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 337.5 to 462.5 MHz, Bandwidth 125 MHz (1dB), Center Frequency 400 MHz, Insertion Loss 0.98 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 6MB/C-400/U112-18 can be seen below.