The C3ZH27 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 3.1 to 3.6 GHz, Average Power 15 W, Average Power Forward 15 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for C3ZH27 can be seen below.