The 2195 from KR Electronics (A Division of NIC) is a Low Pass RF Filter with Frequency DC to 0.016 kHz, Stopband Frequency 60 Hz, 3 dB Cutoff Frequency 0.016 kHz, Lower Rejection 40 dB@60 Hz, Upper Rejection 3 dB@60 Hz. Tags: Plug In. More details for 2195 can be seen below.