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4 “ Outside Diameter
Thread NPT: 3/4"
These hatches provide an attractive and economical way to access horizontal or vertical storage areas
so they don't waste any energy
Harken 29mm Triple Carbo Air Block w/Swivel [344] Brand_Polyform U.S. 4 “ Outside Diameter29mm Triple Carbo Air Block with Swivel Low friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Specifications: Sheave: 29mm 1 1 8in. Length: 73mm 2 7 8in. Weight: 74g 2. 6oz Shackle pin: 5mm 3 16in Maximum line: 8mm 5 16in Maximum working load: 449kg 990lb Breaking load: 907kg 2000lb
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