The T1KA4 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.9 to 2.02 GHz, Average Power 200 W, Average Power Forward 200 W, Peak Power 1200 W, Insertion Loss 0.25 dB. Tags: Drop-In, Drop-In Isolator. More details for T1KA4 can be seen below.