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Harken Carbo Air Block

by Harken
Single or double
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Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming.

  Double Swivel Single Fixed Stand Up Single Swivel
Sheave Ø 
40 mm
29 mm
40 mm
Length (mm)
94 mm
56 mm
86 mm
Weight (g)
86 g
31 g
44 g
Shackle pin Ø (mm)
5 mm
4 mm
Maximum line Ø (mm)
10 mm
8 mm
10 mm
Maximum working load (kg)
440 kg
150 kg
220 kg
Breaking load (kg)
1080 kg
454 kg
735 kg