The PEWMT1002 from Pasternack Enterprises Inc is a Waveguide Tee with Frequency 50 to 75 GHz, Isolation 15 to 25 dB, Insertion Loss 1 dB, Isolation(Co-linear arms) 15 to 25 dB, Isolation(E & H arms) 15 to 25 dB. Tags: Magic Tee. More details for PEWMT1002 can be seen below.