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Double Blocks

These Double Blocks have a two sheave for two turning points and are common in many sailboat rigging applications. Useful when making a multipoint purchase system for a vang, cunningham, outhaul, or other control.


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  • Ronstan 15 mm Utility Double Block

    Ronstan 15 mm Utility Double Block

    Ronstan
    $23.80
    The Ronstan 15 mm Utility Block range offers small boat sailors a lightweight, stainless steel block range for a variety of applications such as control lines and shockcord tension systems. This double block version is great for control line systems such...
    Qty in Cart: 0
    Price:
    $23.80
    Subtotal:
  • Ronstan 15 mm Utility Double Block with Becket

    Ronstan 15 mm Utility Double Block with Becket

    Ronstan
    $26.35
    The Ronstan 15 mm Utility Block range offers small boat sailors a lightweight, stainless steel block range for a variety of applications such as control lines and shockcord tension systems. This double block version is great for control line systems such...
    Qty in Cart: 0
    Price:
    $26.35
    Subtotal:
  • Harken 16 mm Double Block H406

    Harken 16 mm Double Block H406

    Harken
    $33.95
    The 16 mm is Harken’s® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race. Stainless Steel Construction Sheave:16 mm /...
    Qty in Cart: 0
    Price:
    $33.95
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  • Harken 16 mm Double Block w/ Becket H407

    Harken 16 mm Double Block w/ Becket H407

    Harken
    $36.95
    The 16 mm is Harken’s® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race. Sheave 16 mm / 5/8 in Length: 54 mm / 2 1/8...
    Qty in Cart: 0
    Price:
    $36.95
    Subtotal:
  • Harken T2 18 mm Double Block H2158

    Harken T2 18 mm Double Block H2158

    Harken
    $39.95
    Harken soft-attach Fly blocks are designed to provide strength without mass, providing sailors with big power in a low-aero package. Designed specifically for high-tech line, these efficient blocks have an incredible working load for their small size...
    Qty in Cart: 0
    Price:
    $39.95
    Subtotal:
  • Ronstan 20 mm Double Block

    Ronstan 20 mm Double Block

    Ronstan
    $30.55
    Ronstan's ball bearing blocks were conceived and engineered for the demands of competitive sailing in all types of boats and have rapidly become the international choice for high performance hardware. Highly efficient, low friction bearing systems for...
    Qty in Cart: 0
    Price:
    $30.55
    Subtotal:
  • Ronstan 20 mm Double w/Becket N

    Ronstan 20 mm Double w/Becket

    Ronstan
    $33.83
    Ronstan's ball bearing blocks were conceived and engineered for the demands of competitive sailing in all types of boats and have rapidly become the international choice for high performance hardware. Sheave: 20mm (3/4") Max Rope Diameter: 6mm (1/4")...
    Qty in Cart: 0
    Price:
    $33.83
    Subtotal:
  • Harken Micro 22 mm Double Block H226

    Harken Micro 22 mm Double Block H226

    Harken
    $34.95
    Low-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes. Sheave: 22 mm / 7/8 in Length: 51 mm / 2 in Weight: 43 g / 1.5 oz Maximum line: 6 mm / 1/4 in...
    Qty in Cart: 0
    Price:
    $34.95
    Subtotal:
  • Harken 29 mm Double Block H342

    Harken 29 mm Double Block H342

    Harken
    $49.95
    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. Sheave: 29 mm / 1 1/8 in...
    Qty in Cart: 0
    Price:
    $49.95
    Subtotal:
  • Harken 29 mm Double Bullet Block w/ Becket H085

    Harken 29 mm Double Bullet Block w/ Becket H085

    Harken
    $54.95
    Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. Sheave: 29 mm / 1 1/8 in Length:...
    Qty in Cart: 0
    Price:
    $54.95
    Subtotal:
  • Harken T2 29 mm Double Block H2147

    Harken T2 29 mm Double Block H2147

    Harken
    $45.95
    T2™ blocks come in single and double configurations and can be tied, spliced, or lashed to almost anything. T2 doubles feature composite line guides that are integrated into the block head. They prevent the block from capsizing by pushing the...
    Qty in Cart: 0
    Price:
    $45.95
    Subtotal:
  • Ronstan 30 mm Double Orbit Block

    Ronstan 30 mm Double Orbit Block

    Ronstan
    $37.11
    The Ronstan 30mm Double Orbit block is small and compact. Great for use on performance boats. 30mm  Ball Bearing Lightweight High working load Simple, versatile and secure attachment Low profile and compact * Double Block Style
    Qty in Cart: 0
    Price:
    $37.11
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  • Harken 40 mm Double Fixed Block H2642

    Harken 40 mm Double Fixed Block H2642

    Harken
    $67.95
    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. Sheave: 40 mm / 1 9/16 in...
    Qty in Cart: 0
    Price:
    $67.95
    Subtotal:
  • Harken 40 mm Double Block H2638

    Harken 40 mm Double Block H2638

    Harken
    $80.95
    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. Sheave: 40 mm / 1 9/16 in...
    Qty in Cart: 0
    Price:
    $80.95
    Subtotal:
  • Harken 40mm Double Block w/ Becket H2639

    Harken 40mm Double Block w/ Becket H2639

    Harken
    $86.95
    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. Sheave: 40 mm / 1 9/16 in...
    Qty in Cart: 0
    Price:
    $86.95
    Subtotal:
  • Harken T2 40 mm Double Block H2150

    Harken T2 40 mm Double Block H2150

    Harken
    $67.95
    T2™ blocks come in single and double configurations and can be tied, spliced, or lashed to almost anything. T2 doubles feature composite line guides that are integrated into the block head. They prevent the block from capsizing by pushing the...
    Qty in Cart: 0
    Price:
    $67.95
    Subtotal:
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