Welcome to Defender Canada! 
Single Blocks
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Lewmar Synchro Control Block - 40 mm (1 9/16")
$38.38 - $139.63 -
Schaefer 3 Series Stand-Up Swivel Block - 303-62
$173.38 -
9% offHarken Micro Block - 22 mm (7/8") - 224
$20.78$18.77 -
9% offHarken Bullet Block - 29 mm (1 1/8") - 082
$27.53$24.84 -
9% offHarken Carbo Air Block Stand-Up Block - 29 mm (1 1/8") - 349
$36.98$33.35 -
9% offHarken Single Block with T2 Soft-Attachment - 40 mm (1 9/16") - 2149
$59.93$54.00 -
9% offHarken Carbo Air Block Ratchet Swivel/Becket - 57 mm (2 1/4") - 2136
$124.73$112.32 -
Schaefer 7 Series Block - 706-05
$172.03 -
9% offHarken Carbo AirBlock - 57 mm (2 1/4") - 2601
$84.23$75.87 -
9% offHarken Micro Block - 22 mm (7/8") - 234
$28.88$26.06 -
9% offHarken Big Bullet Block - 38 mm (1 1/2") - 146
$57.23$51.57 -
9% offHarken Carbo Air Block - 40 mm (1 9/16") - 2637
$59.93$54.00 -
9% offHarken Carbo Air Block - 40 mm (1 9/16") - 2608
$97.73$88.02 -
9% offHarken T2 Soft-Attach Ratchamatic Block - 57 mm (2 1/4") - 2160
$119.33$107.46 -
Barton Size 4/5 Single Block
$37.43 - $178.91 -
Ronstan Series 40 Stand-Up Block - 40 mm (1 9/16") - RF41140
$48.40 -
Ronstan Series 50 Block - 50 mm (2") - RF51100
$48.94 -
Ronstan Series 55 BB Orbit Block - 55 mm (2 5/32") - RF55110
$67.54 -
Ronstan Series 60 Core Block - 60 mm (2 3/8") - RF64110
$204.22 -
9% offSchaefer 7 Series Stand-Up Swivel Block - 704-62
$271.93$244.80 -
9% offHarken Bullet Block with Becket - 29 mm (1 1/8") - 083
$32.93$29.70 -
9% offHarken Carbo Air Block - 29 mm (1 1/8") - 341
$46.43$41.85 -
9% offHarken Carbo Air Block - 29 mm (1 1/8") - 348
$23.48$21.20 -
9% offHarken Big Bullet Block - 38 mm (1 1/2") - 125
$49.13$44.28 -
9% offHarken Big Bullet Block - 38 mm (1 1/2") - 168
$65.33$58.86 -
Ronstan Series 55 Ratchet Orbit Block - 55 mm (2 5/32") - RF56110
$121.75 -
Schaefer 5 Series Block - 504-15
$130.18 -
9% offHarken Carbo Air Block Stand-Up Block - 40 mm (1 9/16") - 2652
$57.23$51.57 -
9% offHarken T2 Soft-Attach Ratchamatic Block - 40 mm (1 9/16") - 2159
$100.43$90.45 -
9% offHarken Line/Wire Block - 51 mm (2") - 308
$151.73$136.62 -
Lewmar Synchro Stand Up Block - 60 mm (2 3/8") - 29926000BK
$139.63 -
Barton Size 2 Wooden Single Block
$189.95 - $217.68 -
9% offHarken Micro Block with Shackle and Becket - 22 mm (7/8") - 235
$32.93$29.70 -
9% offHarken Zircon Block
$72.08 - $171.98$64.94 - $154.85 -
Ronstan Series 20 Block - 20 mm (3/4") - RF20101
$18.08 -
Ronstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35100
$33.07 -
Ronstan Series 60 Core Block - 60 mm (2 3/8") - RF64100
$150.00 -
9% offHarken Aluminum Element Standing Block - 80 mm (3 1/8") - 6280
$445.76$401.25 -
9% offHarken Micro Block - 22 mm (7/8") - 225
$23.48$21.20 -
9% offHarken Big Bullet Block - 38 mm (1 1/2") - 147
$66.68$60.08 -
9% offHarken Wire Block with Swivel - 22 mm (7/8") - 292
$39.68$35.78 -
9% offHarken Black Magic Block with Swivel - 75 mm (2 15/16") - 3231
$713.33$642.06 -
9% offHarken Micro Anti-Capsize Block - 22 mm (7/8") - 443
$32.93$29.70 -
9% offHarken Aluminum Element Mast Base Block with Swivel - 80 mm (3 1/8") - 6221
$146.26$131.70 -
Ronstan Series 20 Ball Bearing Block - 20 mm (3/4") - RF25109
$21.01 -
Ronstan Series 40 BB Orbit Block - 40 mm (1 9/16") - RF45110
$46.32 -
Ronstan Series 40 Block - 40 mm (1 9/16") - RF41110
$45.22 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15100
$31.23