The HRT-DQ(2000/18000)-20N from Chengdu Filter Technology Co.,Ltd is a Dual Directional Coupler with Coupling 19 to 21 dB, Frequency 2 to 18 GHz, Peak Power 0.5 kW, Average Power 50 W, Insertion Loss 1 to 1.4 dB. Tags: Module with Connectors. More details for HRT-DQ(2000/18000)-20N can be seen below.