Manufacturer part #: EX1351H
Harken has developed a new hook in sprit block. This block actually conforms to the mast so there is less wear. It also prevents twisting of the hook-in block.
Harken suggests that the block use high strength line rather then stainless wire. In addition they recommend the Harken 29mm Ti-lite block or the 29 mm Carbo Single/fixed block for turning the block into the 2 to 1 power system. The slightly bigger blocks provide very smooth adjustment of the sprit tension.
Harken has developed a new hook in sprit block. This block actually conforms to the mast so there is less wear. It also prevents twisting of the hook-in block.
Harken suggests that the block use high strength line rather then stainless wire. In addition they recommend the Harken 29mm Ti-lite block or the 29 mm Carbo Single/fixed block for turning the block into the 2 to 1 power system. The slightly bigger blocks provide very smooth adjustment of the sprit tension.
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Optiparts Block, Harken ball bearing hook-in
very good