The C1ZU2 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.805 to 1.88 GHz, Average Power 30 W, Average Power Forward 30 W, Insertion Loss 0.3 dB, Isolation 23 dB. Tags: Drop-In, Drop-In Isolator. More details for C1ZU2 can be seen below.