The RFCR9135 from RF-CI is a RF & Microwave Circulator with Frequency 132 to 154 MHz, Average Power Forward 150 W, Average Power Reverse 100 W, Insertion Loss 0.5 to 0.8 dB, Isolation 15 to 18 dB. Tags: Drop-in Circulator. More details for RFCR9135 can be seen below.