The QCI-18000-26500-10-5-K from Qualwave is a RF & Microwave Isolator with Frequency 18000 to 26500 MHz, Bandwidth 8500 MHz, Average Power Forward 10 W, Average Power Reverse 5 W, Insertion Loss 0.7 dB. Tags: Module with Connector, Coaxial Isolator. More details for QCI-18000-26500-10-5-K can be seen below.