The 159-125-(L)-2-2 from Narda-ATM is a Flexible Waveguide with Frequency 4.90 to 7.05 GHz, Insertion Loss 0.05 dB/ft, Power 2.5 kW, Pressure 30 psig, Operating Temperature -55 to 130 Degree C. Tags: Non-Twistable. More details for 159-125-(L)-2-2 can be seen below.