High-performance Harken 75mm Single Carbo Air Blocks deliver durability and affordability in one package. As a trusted alternative to Harken Big Boat blocks, these compact, high-load blocks ensure effortless sail trimming and reliable performance. Ideal for boating enthusiasts seeking quality marine supplies.

• Sheave Ø (mm): 75 mm
• Sheave Ø (in): 2 15/16 in
• Length (mm): 137 mm
• Length (in): 5 3/8 in
• Weight (g): 381 g
• Weight (oz): 13.4 oz
• Maximum line Ø (mm): 12 mm
• Maximum line Ø (in): 1/2 in
• Maximum working load (kg): 136 kg
• Maximum working load (lb): 300 lb
• Breaking load (lb): 750 lb
• Breaking load (kg): 340 kg
• Footnote: Maximum working loads and breaking loads for blocks based on cam strengths.
• Shackle pin Ø (mm): 6 mm
• Shackle pin Ø (in): 1/4 in