The 7MB/E-300/H170-S5L from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 209 to 391 MHz, Bandwidth 182 MHz (0.5dB), Center Frequency 300 MHz, Upper Rejection 40 dB, Lower Rejection 40 dB. Tags: Lumped Component Filter. More details for 7MB/E-300/H170-S5L can be seen below.