Synergy Between Boat Lift Manufacturer, Electrical Products Distributor and Fiberglass Enclosure Manufacturer Results In Superior Product Offering. Synergy --- different elements working together to produce results not obtainable by any of the elements alone --- is what happens when three companies work together to achieve high-quality results. Fifteen years ago Hi-Tide, Graybar and Stahlin Non-Metallic Enclosures began working together to provide boat lift customers with controls that can survive in very harsh environments including exposure to water, salt, corrosives and ultraviolet rays.