The 7MB/C-275/U350-S3L from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 98.8 to 451.2 MHz, Bandwidth 352.4 MHz (1dB), Center Frequency 275 MHz, Insertion Loss 0.35 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 7MB/C-275/U350-S3L can be seen below.