The WVQ-900M-200BW01 from Wevercomm is a RF & Microwave Circulator with Frequency 800 MHz to 1 GHz, Average Power Forward 150 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Drop-in, Drop-in Circulator. More details for WVQ-900M-200BW01 can be seen below.