The T1KG3 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.71 to 1.89 GHz, Average Power 60 W, Average Power Forward 60 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for T1KG3 can be seen below.