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Current Murrays Sports information regarding COVID-19 virus outbreak, our policy and status at this time. UPDATED 5/25/2020 At this time our warehouse is keeping up with demand, we are making every effort to ship same or next day but it is still possible that Shipping and delivery times may be effected.
Current COVID-19 Notice

Harken Block 12:1 Mainsheet Carbo Boom

$205.55 each

SKU: 56-9966 Categories: , ,

Product Description

Harken #HSB379 is a 57mm triple fiddle block with swivel used for 12:1 mainsheet systems on beach cats.

Low-friction Carbo AirBlocks® are lightweight, strong, reliable and affordable. These small, compact blocks have very high working loads for safe, easy trimming.


  • Sheave Diameter: 2-1/4"
  • Length: 6"
  • Maximum Line Diameter: 7/16"
  • Maximum Working Load: 2380 lb.
  • Breaking Strength: 5000 lb.
  • Weight: 11.15 oz.

Special order item.

Additional information

Weight 0.72 lbs

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