The 42-125-(L)-6-6 from Narda-ATM is a Flexible Waveguide with Frequency 18.0 to 26.5 GHz, Insertion Loss 0.38 dB/ft, Power 0.15 kW, Pressure 45 psig, Operating Temperature -55 to 130 Degree C. Tags: Non-Twistable. More details for 42-125-(L)-6-6 can be seen below.