The WVQ-1700M-200BW01 from Wevercomm is a RF & Microwave Circulator with Frequency 1.6 to 1.8 GHz, Average Power Forward 100 W, Insertion Loss 0.4 dB, Isolation 20 dB, Operating Temperature -40 to 85 Degree C. Tags: Drop-in, Drop-in Circulator. More details for WVQ-1700M-200BW01 can be seen below.