WR90 (UG39/U flange) to 0.9 inch Square Waveguide Transition, square side has UG39/U flange dimensions & hole pattern, 2.75 inches length, brass
WR90 (UG39/U flange) to 0.9 inch Square Waveguide Transition, square side has UG39/U flange dimensions & hole pattern, 2.75 inches length, brass