Harken 40mm Carbo Air Triple Swivel Block

The Harken 40mm Carbo Air Triple Swivel Block is designed for sailors and boaters who require precision rigging and effortless sail handling. This block is ideal for various applications, including racing, cruising, and managing heavy loads under pressure.

Constructed with lightweight composite materials, the Carbo Air design minimizes weight aloft while providing superior durability against UV, salt corrosion, and fatigue. The 40mm sheave diameter offers low friction and smooth acceleration under load, making it suitable for mid-sized vessels and flexible line work.

This block is particularly beneficial for cruising and racing sailboats between 25 and 50 feet, as well as trawlers and workboats that manage lines under sustained tension. It can be installed on halyards, sheets, or tackle systems, ensuring improved efficiency by preventing twist buildup.