The C1ZL1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.9 to 2.5 GHz, Average Power 30.3 W, Average Power Forward 30.3 W, Insertion Loss 0.4 dB, Isolation 25 dB. Tags: Drop-In, Drop-In Isolator. More details for C1ZL1 can be seen below.