Welcome to Defender Canada! 
Upright & Lead Blocks
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Harken Carbo Furling Lead Block Kit - 7404
$496.85 -
Harken Stanchion Mount Carbo Block - 40 mm (1 9/16") - 7401
$82.31 -
Harken Carbo Ratchet Block - 57 mm (2 1/4") - 7402
$152.81 -
Harken Carbo Outboard Lead Block Assembly - 29 mm (1 1/8") - 7403
$78.08 -
Harken Over The Top Single Block - 57 mm (2 1/4") - 3002
$341.75 -
Harken Reflex Furling Lead Block Kit - 7356
$278.30 -
Harken Carbo Lead Block - 40 mm (1 9/16") - 2156
$127.43 -
Ronstan Fairlead - 9/16" (14 mm) - RF59
$12.58 -
Harken Halyard Restrainer - 25 mm (15/16") - 944
$121.79 -
Ronstan Shock Block
$24.12 - $32.53 -
Harken Upright Lead Bullet Block - 29 mm (1 1/8") - 096
$42.83 -
Harken Halyard Restrainer - 31 mm (1 1/4") - 945
$158.45 -
Ronstan Series 30 Upright Lead Block - 30 mm (1 3/16") - RF30171
$45.53 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15171
$32.21 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15174
$56.36 -
Ronstan Series 40 Ball Bearing Upright Lead Single Block - RF40171
$79.26 -
Harken Carbo Lead Block - 40 mm (1 9/16") - 2157
$118.97 -
Harken Carbo Lead Block - 29 mm (1 1/8") - 396
$103.46 -
Ronstan Swivel 180 Cleat Platform - RF5
$101.78 -
Harken Double Stanchion Mount Lead Block - 40 mm (1 9/16") - 7405
$128.84 -
Harken Flip-Flop Block - 16 mm (5/8") - 437
$66.80 -
Harken Big Bullet Upright Block - 38 mm (1 1/2") - 222
$72.44 -
Harken Micro Upright Block - 22 mm (7/8") - 243
$30.14 -
Harken Double Upright Lead Bullet Block - 29 mm (1 1/8") - 220
$76.67 -
Ronstan Swivel Dead Eye & Cleat Fairlead - 1/8" - 1/2" (3 - 12 mm) - RF58
$119.53 -
Ronstan Series 20 Upright Lead Block - 20 mm (3/4") - RF20171
$33.87 -
Ronstan Series 20 Upright Lead Block - 20 mm (3/4") - RF20174
$57.18 -
Ronstan Stanchion Block - 20 mm (3/4") - RF3
$94.91 -
Ronstan Series 30 Upright Lead Block - 30 mm (1 3/16") - RF30174
$94.91 -
Harken Big Bullet Upright Block - 38 mm (1 1/2") - 223
$127.43 -
Harken Carbo Lead Block - 29 mm (1 1/8") - 395
$111.92 -
Ronstan Upright Lead Block with Nylatron Sheave - 7/8" (22 mm) - RF453
$45.17 -
Ronstan Series 55 Orbit Block - 55 mm (2 5/32") - RF55171
$91.20 -
Harken Aluminum Mastbase Block - 57 mm (2 1/4") - 1988
$341.75 -
Harken Ratchamatic Small Boat Flip Flop Block - 57 mm (2 1/4") - 2144
$362.90 -
Harken Upright Lead Block - 57 mm (2 1/4") - 206
$124.61 -
Ronstan Series 100 Single Roller Bearing Block with Upright Lead - RF108171
$756.64 -
Ronstan Series 60 Roller Bearing Block with Upright Lead - RF69100
$448.57 -
Ronstan Series 75 Single Upright Lead AP Block - RF71171
$454.89 -
Ronstan Series 60 AP Block
$336.32 - $416.08 -
Ronstan Series 60 Roller Bearing Low-Lead Block
$422.91 - $718.13 -
Ronstan Series 75 Roller Bearing Block
$715.71 - $935.58