The 340-230-2-2 from Narda-MITEQ is a Waveguide Pressure Window with Frequency 2.2 to 3.3 GHz, Pressure 15 PSIG, Peak Power 3500 KW, Power 1800 W, Operating Temperature -40 to 120 Degree C. Tags: Rectangular. More details for 340-230-2-2 can be seen below.