The 991-137145-903 from M2 Global Technology is a RF & Microwave Isolator with Frequency 13.75 to 14.5 GHz, Average Power Forward 30 W, Average Power Reverse 30 W, Insertion Loss 0.3 dB, Isolation 19 dB. Tags: Drop-In, Drop-In Isolator. More details for 991-137145-903 can be seen below.