The RFLC301G17G27 from RF-Lambda is a RF & Microwave Circulator with Frequency 1.71 to 2.69 GHz, Average Power Forward 50 W, Average Power Reverse 50 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Coaxial Circulator. More details for RFLC301G17G27 can be seen below.