Harken 29mm Triple Carbo Air Block w/Swivel, 990lb Load

Achieve efficient and reliable sail trim with the Harken 29mm Triple Carbo Air Block with Swivel. Engineered for lightweight strength, this low-friction block is designed for demanding marine applications, providing very high working loads for safe, easy, and frequent readjustments. Perfect for main/jib sheets, mainsheet fine-tune, control lines, vangs, cunninghams, and outhauls on dinghies and sportboats, it offers a superior blend of performance and durability. Upgrade your rigging for unparalleled control and responsiveness.

Key Features & Benefits:

• Optimized Sheave Diameter: Features a 29mm (1-1/8 inch) sheave, allowing compatibility with a wide range of lines.
• High Line Capacity: Supports a maximum line diameter of 8mm (5/16 inch), ensuring broad application suitability.
• Exceptional Strength: Rated for a maximum working load of 449kg (990lb) and a breaking load of 907kg (2000lb), providing superior safety margins for heavy-duty use.
• Featherlight Design: Weighs only 74g (2.6oz), minimizing overall rigging system weight for improved performance and speed.
• Versatile Swivel: Includes a patented swivel mechanism that can be locked in front or side positions or allowed to spin freely to prevent line twisting and ensure optimal angle adjustment.
• Durable Construction: Built with tough, fiber-reinforced composite, including glass-filled nylon sideplates, and UV-stabilized components with carbon black for maximum protection against the elements and extended lifespan.

Recommended Applications: Ideal as a mainsheet block on small dinghies like the Optimist, or for various control lines on boats of all sizes.