Grand Slam 850 Electric VHF Antenna MountDesigned with safety and innovation in mind, boaters can adjust the position of their VHF antenna with the simple push of a button from the comfort of their helm. The GS-850 is a fully electric unit with hidden wires inside the hardtop. This mount easily installs to the surface of the hardtop and fits all top thicknesses.Features:Standard 1”-14 thread (male) shaft to accept standard VHF antennasNo under-mount clearance requiredMachined / Anodized aluminum body with a light brushed finishThreaded shaft for consistent lift and descentDelrin bearings for smooth operationFeatures removable set screw for manual adjustmentKit includes drill template and installation instructionsIncludes 10” lead for 12-volt DC power supply for lift and descentAccepts 3A fuse in the main +12 VDC power feed (not included)Sold individuallyMade in the USA1-year limited warranty