The M-172-252-92W102-R from Narda-MITEQ is a 90 Degree Hybrid Coupler with Frequency 1.7 to 2.5 GHz, Average Power 250 W, Insertion Loss 0.4 dB, Isolation 17 dB, Amplitude Balance ± 0.75 dB. Tags: Drop In. More details for M-172-252-92W102-R can be seen below.