The 2297-9 from KR Electronics (A Division of NIC) is a Low Pass RF Filter with Frequency DC to 40 MHz, Stopband Frequency 56 MHz, 3 dB Cutoff Frequency 40 MHz, Lower Rejection 45 dB@56 MHz, Upper Rejection 0.5 dB@56 MHz. Tags: Plug In. More details for 2297-9 can be seen below.
