The 2441-BNC from KR Electronics (A Division of NIC) is a Band Pass Filter with Frequency 66.5 to 73.5 MHz, Bandwidth 7 MHz, Center Frequency 70 MHz, Insertion Loss 1 dB, Rejection 55 dB. Tags: Module with Connectors, Lumped Component Filter. More details for 2441-BNC can be seen below.