The WVI-430M-80BW01 from Wevercomm is a RF & Microwave Isolator with Frequency 390 to 470 MHz, Average Power Forward 50 W, Average Power Reverse 10 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for WVI-430M-80BW01 can be seen below.