The WVQ-2595M-50BW02 from Wevercomm is a RF & Microwave Circulator with Frequency 2.57 to 2.62 GHz, Average Power Forward 50 W, Insertion Loss 0.3 dB, Isolation 23 dB, Operating Temperature -10 to 70 Degree C. Tags: Module with Connector, Coaxial Circulator. More details for WVQ-2595M-50BW02 can be seen below.