The RFLC-100-1 from RF-Lambda is a Space Qualified Circulator with Frequency 1 to 2 GHz, Bandwidth 1000 MHz, Average Power Forward 50 W, Insertion Loss 0.9 to 1 dB, Isolation 17 to 18 dB. Tags: Module with Connector, Coaxial Circulator. More details for RFLC-100-1 can be seen below.