The D5BT-375/750-5-N/N-GRI from K&L Microwave is a Tunable Filter with Frequency 375 to 750 MHz, Bandwidth 18.75 MHz, Input Power 50 W, Insertion Loss 1 dB, Supply Voltage 24 V. Tags: Benchtop, Digitally Controlled. More details for D5BT-375/750-5-N/N-GRI can be seen below.