The 2480 from KR Electronics (A Division of NIC) is a Band Pass Filter with Frequency 16.2 to 19.8 kHz, Bandwidth 3.6 KHz, Center Frequency 18 kHz, Insertion Loss 2 dB, Rejection 28 dB. Tags: Module with Connectors, Lumped Component Filter. More details for 2480 can be seen below.
