The LP-BTRW-NMS from Times Microwave Systems is a RF Surge Protector with Frequency 20 to 1000 MHz, Input Power 50 to 375 W (Power handling), Insertion Loss 0.1 dB, Operating Temperature -40 to 50 Degree C, Return Loss 26 dB. More details for LP-BTRW-NMS can be seen below.