Global Invacom Waveguide (“GIW”) offer a range of standard gain Horns from WG10 (WR284) to WG22 (WR28) in three values, 10dB, 15dB and 20dB. The physically larger sizes are predominantly fabricated in brass. WG16 through to WG 22 are generally electroformed in copper in order to maintain the tight tolerances for these smaller waveguide sizes. Horns are manufactured with the full range of International Flange Styles. All GIW Horns are offered with an attractive hard wearing, epoxy paint finish.