The RFLC-301-2 from RF-Lambda is a RF & Microwave Circulator with Frequency 1.8 to 2.5 GHz, Bandwidth 400 MHz, Average Power Forward 100 W, Insertion Loss 0.4 dB, Isolation 21 dB. Tags: Coaxial Circulator. More details for RFLC-301-2 can be seen below.