The M-23-43-182WS from Narda-MITEQ is a 180 Degree Hybrid Coupler with Frequency 2 to 4 GHz, Average Power 50 W, Amplitude Balance 1 dB, Phase Balance 12 Degree, Insertion Loss 0.8 dB. Tags: Module with Connector. More details for M-23-43-182WS can be seen below.