The 6MB/C-70/U20-18 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 58.25 to 81.75 MHz, Bandwidth 23.5 MHz (1dB), Center Frequency 70 MHz, Insertion Loss 1.33 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 6MB/C-70/U20-18 can be seen below.