The RFLC18G26GB from RF-Lambda is a Space Qualified Circulator with Frequency 18 to 26.5 GHz, Bandwidth 8500 MHz, Average Power Forward 10 W, Insertion Loss 1 to 1.6 dB, Isolation 14 to 15 dB. Tags: Module with Connector, Coaxial Circulator. More details for RFLC18G26GB can be seen below.