The DI-1050-449 from RF & Noise Components is a RF & Microwave Isolator with Frequency 1 to 1.1 GHz, Average Power Forward 250 W, Average Power Reverse 100 W, Insertion Loss 0.2 to 0.25 dB, Isolation 23 to 26 dB. Tags: Drop-In, Drop-In Isolator. More details for DI-1050-449 can be seen below.