The WVQ-1300M-200BW01 from Wevercomm is a RF & Microwave Circulator with Frequency 1.2 to 1.4 GHz, Average Power Forward 100 W, Peak Power 400 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Drop-in, Drop-in Circulator. More details for WVQ-1300M-200BW01 can be seen below.