Harken 18 mm Switch System Mounting Kit — Round Mast Groove

Big Boat end controls secure to track, eliminating additional holes. Tough one-piece bases and cam arms are machined from a single piece of aluminum. Ball bearing sheaves let cars adjust under load and release instantly. Compact, high-strength Carbo AirBlock® components keep traveler weight minimal. Use HC8239 to route control lines to the deck from a bridge-mounted traveler.

6:1 purchase.