The RFC214W1000M435 from RF-Lambda is a Space Qualified Circulator with Frequency 410 to 460 MHz, Bandwidth 50 MHz, Average Power 1000 W, Average Power Forward 1000 W(Power Handling CW), Insertion Loss 0.40 dB. Tags: Module with Connector, Coaxial Circulator. More details for RFC214W1000M435 can be seen below.