Harken Block 57mm Carbo Triple with Swivel

$144.05/ each

Code: 28-2604

Harken's low-friction Carbo AirBlock® is lightweight, strong, reliable and affordable. It has an enormous working range, with a very high working load for safe, easy trimming. It has a higher working load than standard blocks, even though it is lighter in weight! Use with #28-2629 base block for a 6:1 carbo low-profile mainsheet system.


  • Sheave diameter: 2-1/4" (57 mm)
  • Length: 4-3/4" (121 mm)
  • Weight: 9 oz. (255 g)
  • Shackle pin diameter: 1/4" (6 mm)
  • Maximum working load: 2380 lb. (1080 kg)
  • Maximum line diameter: 7/16" (10mm)
  • Breaking load: 5000 lb. (2270 kg)

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