29MM TRIPLE CARBO AIR BLOCK W/SWIVEL

Harken 29mm Triple Carbo Air Block with Swivel

The Harken 29mm Triple Carbo Air Block with Swivel is a compact, lightweight triple pulley built for smooth, low-friction line control in multi-part rigging systems. Designed with Harken’s Carbo Air construction, this block gives you strong working loads without adding unnecessary weight or bulk.

The triple-sheave design makes it ideal for tackle systems, outrigger rigging, dredge pulley setups, teaser systems, and other custom marine applications where you need clean line movement and extra mechanical advantage in a small package. The swivel head helps reduce line twist and allows the block to align naturally under load.

Key Features

• Triple 29mm sheave design
• Swivel head for better line alignment
• Lightweight Carbo Air construction
• Low-friction ball bearing performance
• Compact size with strong working load
• Works with line up to 5/16"
• Great for custom rigging, dredge setups, teaser systems, and marine tackle applications
• Manufacturer part number: 344

Specs

• Sheave: 29mm / 1-1/8"
• Length: 73mm / 2-7/8"
• Weight: 2.6 oz / 74g
• Shackle Pin: 3/16" / 5mm
• Max Line Diameter: 5/16" / 8mm
• Max Working Load: 990 lb / 449kg
• Breaking Load: 2,000 lb / 907kg

The Harken 29mm Triple Carbo Air Block is a dependable choice when you need a small but strong block for smooth line management and compact multi-part rigging systems. Specs cross-checked against multiple product listings after Harken’s page rate-limited the request.