Welcome to Defender Canada! 
Upright & Lead Blocks
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Harken Carbo Furling Lead Block Kit - 7404
$466.28 -
Harken Stanchion Mount Carbo Block - 40 mm (1 9/16") - 7401
$77.48 -
Harken Carbo Ratchet Block - 57 mm (2 1/4") - 7402
$143.63 -
Harken Reflex Furling Lead Block Kit - 7356
$261.08 -
Harken Carbo Outboard Lead Block Assembly - 29 mm (1 1/8") - 7403
$73.43 -
Harken Carbo Lead Block - 40 mm (1 9/16") - 2156
$119.33 -
Harken Over The Top Single Block - 57 mm (2 1/4") - 3002
$320.48 -
Harken Halyard Restrainer - 25 mm (15/16") - 944
$115.28 -
Ronstan Shock Block
$23.12 - $31.18 -
Harken Carbo Lead Block - 40 mm (1 9/16") - 2157
$112.58 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15171
$30.87 -
Harken Upright Lead Bullet Block - 29 mm (1 1/8") - 096
$41.03 -
Harken Big Bullet Upright Block - 38 mm (1 1/2") - 222
$68.03 -
Harken Aluminum Mastbase Block - 57 mm (2 1/4") - 1988
$320.48 -
Ronstan Series 20 Upright Lead Block - 20 mm (3/4") - RF20171
$32.46 -
Harken Micro Upright Block - 22 mm (7/8") - 243
$28.88 -
Harken Double Upright Lead Bullet Block - 29 mm (1 1/8") - 220
$70.73 -
Harken Double Stanchion Mount Lead Block - 40 mm (1 9/16") - 7405
$120.68 -
Ronstan Series 20 Upright Lead Block - 20 mm (3/4") - RF20174
$54.77 -
Ronstan Swivel 180 Cleat Platform - RF5
$103.77 -
Harken Carbo Lead Block - 29 mm (1 1/8") - 395
$104.48 -
Harken Carbo Lead Block - 29 mm (1 1/8") - 396
$97.73 -
Harken Big Bullet Upright Block - 38 mm (1 1/2") - 223
$120.68 -
Harken Flip-Flop Block - 16 mm (5/8") - 437
$62.63 -
Ronstan Series 60 Pivoting Low-Lead Ratchet Block with Cleat - RF62175
$400.18 -
Harken Halyard Restrainer - 31 mm (1 1/4") - 945
$149.03 -
Harken Ratchamatic Small Boat Flip Flop Block - 57 mm (2 1/4") - 2144
$340.73 -
Ronstan Stanchion Block - 20 mm (3/4") - RF3
$90.90 -
Ronstan Series 30 Upright Lead Block - 30 mm (1 3/16") - RF30171
$43.62 -
Ronstan Series 30 Upright Lead Block - 30 mm (1 3/16") - RF30174
$90.90 -
Ronstan Series 55 Orbit Block - 55 mm (2 5/32") - RF55171
$87.35 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15174
$53.99 -
Harken Upright Lead Block - 57 mm (2 1/4") - 206
$117.98