The T1BE1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.805 to 1.88 GHz, Average Power 10 to 50 W, Average Power Forward 10 to 50 W, Insertion Loss 0.5 dB, Isolation 40 dB. Tags: Drop-In, Drop-In Isolator. More details for T1BE1 can be seen below.