The RFSL2953 from RF-CI is a RF & Microwave Isolator with Frequency 9 to 11.5 GHz, Average Power Forward 25 W, Average Power Reverse 2 W, Peak Power Forward 0.25 kW, Insertion Loss 0.4 to 0.5 dB. Tags: Drop-In, Drop-In Isolator. More details for RFSL2953 can be seen below.