The T1EE3 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.03 to 1.09 GHz, Average Power 5 W, Average Power Forward 5 W, Peak Power 250 W, Insertion Loss 0.25 dB. Tags: Drop-In, Drop-In Isolator. More details for T1EE3 can be seen below.