The 2413 from KR Electronics (A Division of NIC) is a Band Pass Filter with Frequency 0.345 to 0.455 kHz, Bandwidth 110 Hz, Center Frequency 0.4 kHz, Insertion Loss 3 dB, Rejection 40 dB. Tags: PCB Mount, Surface Mount, Lumped Component Filter. More details for 2413 can be seen below.