The 5MB/E-20.8/T3-P2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 18.95 to 22.65 MHz, Bandwidth 3.7 MHz (3dB), Center Frequency 20.8 MHz, Insertion Loss 1.66 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 5MB/E-20.8/T3-P2 can be seen below.