The RFSL6119 from RF-CI is a RF & Microwave Isolator with Frequency 700 MHz to 1 GHz, Average Power Forward 250 W, Average Power Reverse 20 W, Peak Power Forward 2 kW, Insertion Loss 0.5 to 0.6 dB. Tags: Module with Connector, Coaxial Isolator. More details for RFSL6119 can be seen below.