WR-28 to WR-42 Waveguide Transition 2 Inch Length, UG-599 U Square Cover Flange to UG-595 U Square Cover Flange WR-28 to WR-42 Waveguide Transition 2 Inch Length, UG-599 U Square Cover Flange to UG-595 U Square Cover Flange Microwave Products: Attenuators, Splitters, Combiners, Couplers, RF Filters, Power Dividers, Matching Transformers, High power dummy loads, DC Blocks, Multi way couplers, LPF, BPF, Duplexers, Lightning Arrestors, all infrastructure items for IBS and BTS