The RFLC-216-2 from RF-Lambda is a RF & Microwave Circulator with Frequency 600 MHz to 1.7 GHz, Bandwidth 50 to 200 MHz, Average Power Forward 500 W, Peak Power 4000 W, Insertion Loss 0.5 to 1 dB. Tags: Coaxial Circulator. More details for RFLC-216-2 can be seen below.