The RFLC313G2G4 from RF-Lambda is a Space Qualified Circulator with Frequency 2 to 4 GHz, Bandwidth 2000 MHz, Average Power Forward 100 W, Average Power Reverse 10 W, Insertion Loss 1 to 1.5 dB. Tags: Module with Connector, Coaxial Circulator. More details for RFLC313G2G4 can be seen below.