The most popular and versatile mounting system is the thru-deck mounting sleeve. A heavy-duty fiberglass tube is simply fitted through a hole in the deck and fiberglassed to the underside of the deck and the hull. The mast slides into the tube and is pinned to prevent rotation. The tubes are available for the 3 ½” Deluxe or 2 3/8” Standard masts and are easily cut to fit any hull form.
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Edson Fiberglass Deluxe Mounting Sleeve - for 3" Mast