The T1FP1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.02 to 1.04 GHz, Average Power 320 W, Average Power Forward 320 W, Insertion Loss 0.3 dB, Isolation 25 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T1FP1 can be seen below.