The RFSL6309B from RF-CI is a RF & Microwave Isolator with Frequency 950 MHz to 1.25 GHz, Average Power Forward 250 W, Average Power Reverse 20 W, Peak Power Forward 2 kW, Insertion Loss 0.6 to 0.7 dB. Tags: Module with Connector, Coaxial Isolator. More details for RFSL6309B can be seen below.