The WVI-1920M-140BW01 from Wevercomm is a RF & Microwave Isolator with Frequency 1.85 to 1.99 GHz, Average Power Forward 20 W, Average Power Reverse 15 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Module with Connectors, Coaxial Isolator. More details for WVI-1920M-140BW01 can be seen below.