The T1EE21 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.1 to 1.6 GHz, Average Power 40 W, Average Power Forward 40 W, Insertion Loss 0.6 dB, Isolation 15 dB. Tags: Drop-In, Drop-In Isolator. More details for T1EE21 can be seen below.