The WVI-860M-DD18BW01 from Wevercomm is a RF & Microwave Isolator with Frequency 850 to 875 MHz, Average Power Forward 100 W, Average Power Reverse 100 W, Insertion Loss 0.55 to 0.6 dB, Isolation 40 to 43 dB. Tags: Drop-In, Drop-In Isolator. More details for WVI-860M-DD18BW01 can be seen below.