The RFLC-HXD-16 from RF-Lambda is a RF & Microwave Circulator with Frequency 400 MHz to 1 GHz, Bandwidth 100 to 300 MHz, Average Power Forward 500 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Coaxial Circulator. More details for RFLC-HXD-16 can be seen below.