The RFSL8918 from RF-CI is a RF & Microwave Isolator with Frequency 5.2 to 10.4 GHz, Average Power Forward 25 W, Average Power Reverse 10 W, Peak Power Forward 0.25 kW, Insertion Loss 0.5 to 0.6 dB. Tags: Drop-In, Drop-In Isolator. More details for RFSL8918 can be seen below.