Mast Platforms 18" Radar Mast Platform for Raymarine Radomes Sailboat and Trawler Radar Mast Platforms Anodized Marine Grade Aluminum and Powder Coated Brilliant White. New heavy duty swiveling feet fit most mast and poles adding more strength and durability to platforms. Models available for all brands of radomes. Fits: Raymarine RD418 2kw domes Garmin GMR18 2kw domes Lowrance BR24, 3G, 4G domes Simrad BR24, 3G, 4G domes