The C1ZU23 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.9 to 1.99 GHz, Average Power 10 W, Average Power Forward 10 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for C1ZU23 can be seen below.