Welcome to Defender Canada! 
Single Blocks
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Ronstan Series 55 BB Orbit Block - 55 mm (2 5/32") - RF55110
$69.03 -
Ronstan Series 60 Core Block - 60 mm (2 3/8") - RF64110
$208.74 -
Ronstan Series 40 All-Purpose Single Block - 40 mm (1 9/16") - RF41101
$28.89 -
14% offSchaefer 5 Series Block - 504-15
$133.06$113.19 -
9% offHarken Aluminum Element Mast Base Block with Swivel - 80 mm (3 1/8") - 6221
$149.50$134.61 -
9% offHarken T2 Soft-Attach Ratchamatic Block - 40 mm (1 9/16") - 2159
$102.65$92.45 -
9% offHarken Line/Wire Block - 51 mm (2") - 308
$155.09$139.65 -
9% offHarken T2 Soft-Attach Ratchamatic Block - 57 mm (2 1/4") - 2160
$121.97$109.84 -
9% offHarken Aluminum Element Block - 60 mm (2 3/8") - 6261
$107.69$96.98 -
Ronstan Series 20 Ball Bearing Block - 20 mm (3/4") - RF25109
$21.46 -
Ronstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35100D
$53.49 -
Ronstan Series 40 Block - 40 mm (1 9/16") - RF41110
$46.21 -
Ronstan Series 55 Ratchet Orbit Block - 55 mm (2 5/32") - RF56110
$124.44 -
Ronstan Series 60 Core Block - 60 mm (2 3/8") - RF64130
$344.23 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15101
$18.69 -
Ronstan Series 55 Ratchet Orbit Block - RF56120
$233.38 -
14% offSchaefer 5 Series Block - 506-05
$128.92$109.67 -
14% offSchaefer 8 Series Stand-Up Swivel Block - 08-62
$404.92$344.27 -
9% offLewmar Synchro Stand Up Block - 60 mm (2 3/8") - 29926000BK
$142.72$128.51 -
Barton Size 4/5 Single Block
$38.24 - $182.87 -
Barton Size 0 Single Block
$12.40 - $35.44 -
Barton Size 1 Single Block
$16.30 - $33.97 -
9% offHarken Big Bullet Block - 38 mm (1 1/2") - 147
$68.15$61.40 -
14% offLewmar Synchro Control Block - 30 mm (1 1/4")
$27.25 - $40.60$23.24 - $34.60 -
9% offLewmar HTX Block - 90 mm (3 1/2")
$457.38 - $660.24$411.70 - $594.28 -
Barton Size 7 Plain Sheave Single Bearing Block with Swivel - N07130
$133.44 -
9% offLewmar Synchro Control Stand-Up Block - 40 mm (1 9/16") - 29901420BK
$53.02$47.78 -
9% offLewmar SC Single Ratchet Block - 60 mm (2 3/8") - 29901661BK
$128.92$116.09 -
9% offLewmar HTX Toggle Block - 72 mm (2 7/8") - 29197221
$167.56$150.87 -
Ronstan Series 20 Block - 20 mm (3/4") - RF20111
$23.40 -
Ronstan Series 20 Stand-Up Block - 20 mm (3/4") - RF20141
$31.54 -
Ronstan Series 30 Orbit Stand-Up Block - 30 mm (1 3/16") - RF35140
$42.95 -
Ronstan Series 60 Core Block - 60 mm (2 3/8") - RF64100
$153.32 -
Ronstan Series 60 Core Mast Base Block - 60 mm (2 3/8") - RF64108A
$122.54 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15100
$31.91 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15141
$28.28 -
14% offSchaefer 3 Series Block - 03-05
$88.90$75.66 -
14% offSchaefer 5 Series Block - 505-15
$171.70$146.04 -
14% offSchaefer 5 Series Block - 506-15
$168.94$143.69 -
9% offHarken Aluminum Block with Swivel - 57 mm (2 1/4") - 3215
$317.93$286.20 -
9% offHarken Ratchamatic HTE Block with Swivel and 2x Grip - 57 mm (2 1/4") - 2168.HTE
$182.69$164.49 -
9% offHarken 90 deg. Carbo Block - 40 mm (1 9/16") - 2659
$58.49$52.71 -
9% offHarken Micro Anti-Capsize Block - 22 mm (7/8") - 443
$33.65$30.35 -
9% off
Lewmar Synchro Stand Up Block - 72 mm (2 13/16") - 29927200BK
$179.98$162.04 -
Barton Size 2 Wooden Single Block
$194.16 - $222.50 -
Barton Size 1 Ball Bearing Single Block
$24.75 - $38.58 -
Barton Size 7 Ball Bearing Single Block
$75.46 - $233.00 -
Barton Ball Bearing Double Tang Single Block
$26.98 - $83.01