The RFSL6304 from RF-CI is a RF & Microwave Isolator with Frequency 960 MHz to 1.215 GHz, Average Power Forward 250 W, Average Power Reverse 20 W, Peak Power Forward 2 kW, Insertion Loss 0.4 to 0.5 dB. Tags: Module with Connector, Coaxial Isolator. More details for RFSL6304 can be seen below.