The RFSL3157 from RF-CI is a RF & Microwave Isolator with Frequency 790 MHz to 1 GHz, Average Power Forward 200 W, Average Power Reverse 20 W, Peak Power Forward 1 kW, Insertion Loss 0.5 to 0.6 dB. Tags: Module with Connector, Coaxial Isolator. More details for RFSL3157 can be seen below.