The ECS-10.7-12A from ECS Inc. International is a Band Pass Filter with Frequency 10.694 to 10.706 MHz, Bandwidth 6 kHz, Center Frequency 10.7 MHz, Insertion Loss 2 dB, Rejection 35 to 40 dB. Tags: Through Hole, Crystal Filter. More details for ECS-10.7-12A can be seen below.