The T1DZ4 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.9 to 2.02 GHz, Average Power 100 W, Average Power Forward 100 W, Insertion Loss 0.3 dB, Isolation 22 dB. Tags: Drop-In, Drop-In Isolator. More details for T1DZ4 can be seen below.