The DG9-8-18G-1207 from COM-MW is a RF & Microwave Isolator with Frequency 8 to 18 GHz, Average Power Forward 10 W, Average Power Reverse 2 W, Insertion Loss 0.8 dB, Isolation 14 dB. Tags: Coaxial Isolator. More details for DG9-8-18G-1207 can be seen below.