Welcome to Defender Canada! 
Double Blocks
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14% offRonstan Series 40 All Purpose Double Block - RF41200
$77.18$65.68 -
14% offRonstan Series 30 Utility Double Block - RF417
$33.68$28.71 -
14% offLewmar Synchro Control Double Block - 30 mm (1 1/4")
$64.03 - $68.26$54.52 - $61.50 -
9% offHarken Double Carbo Block - 29 mm (1 1/8") - 381
$65.39$58.90 -
9% offHarken Double Block - 16 mm (5/8") - 406
$52.70$47.48 -
9% offHarken Double Block with Becket - 16 mm (5/8") - 407
$58.34$52.56 -
9% offHarken Black Magic Aluminum Swivel Double Block - 45 mm (1 3/4")
$564.53 - $642.08$508.13 - $577.92 -
14% offRonstan Series 20 Double Block - 20 mm (3/4") - RF20212
$52.20$44.46 -
14% offRonstan Series 30 Orbit Double Block - 30 mm (1 3/16") - RF35202
$57.18$48.69 -
14% offRonstan Series 60 Core Double Block - 60 mm (2 3/8") - RF64202
$326.53$277.64 -
14% offRonstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15202
$36.89$31.43 -
Barton Size 2 Double Block
$31.87 - $64.25 -
Barton Size 4/5 Double Block
$63.40 - $105.85 -
Barton Size 0 Ball Bearing Double Block
$39.40 - $56.72 -
14% offRonstan Series 40 Ball Bearing Double Orbit Block - RF48210
$138.96$118.21 -
14% offRonstan Series 50 Double Block - 50 mm (2") - RF51210
$135.39$115.17 -
14% offRonstan Series 55 Ball Bearing Orbit Double Block - 55 mm (2 5/32") - RF55210
$148.37$126.20 -
14% offRonstan Series 75 Core Double Block - 75 mm (3") - RF74202
$364.28$309.73 -
14% offRonstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15212
$40.78$34.75 -
44% offSchaefer 5 Series Double Block - 504-35
$245.92$135.52 -
14% offSchaefer 7 Series Double Block - 706-25
$409.48$348.15 -
9% offLewmar Synchro Double Block - 90 mm (3 1/2") - 29929002BK
$336.18$302.63 -
9% offLewmar Racing Double Block - 60 mm (2 3/8") - 29901612BK
$408.07$367.33 -
9% offLewmar Racing Double Block - 80 mm (3 1/8") - 29901812BK
$423.58$381.28 -
9% offLewmar Double with Becket Racing Block - 80 mm (3 1/8") - 29901815
$485.62$437.12 -
Barton Size 1 Wooden Double Block
$181.06 - $223.36 -
Barton Size 3 Wooden Double Block
$256.13 - $333.05 -
Barton Size 0 Double Block
$28.78 - $50.44 -
Barton Size 7 Double Block
$106.04 - $116.02 -
Barton Size 4/5 Ball Bearing Double Block
$87.75 - $112.19 -
Barton Size 6 Ball Bearing Double Block
$117.53 - $122.44 -
Barton Size 7 Ball Bearing Double Block
$145.49 - $156.22 -
29% offAntal Looper Double Block with Becket - LS1063
$292.45$204.89 -
9% offHarken Carbo Air Block - 40 mm (1 9/16") - 2643
$111.92$100.78 -
9% offHarken Midrange Double Block - 76 mm (3") - 1545
$427.77$385.05 -
9% offHarken Aluminum Element Double Block with Swivel and Becket - 80 mm (3 1/8") - 6297
$366.72$330.10 -
Barton TUPHblox Size 1 Double Block
$48.52 - $66.85 -
Barton TUPHblox Size 2 Double Block
$49.93 - $74.92 -
Barton TUPHblox Size 3 Double Block
$61.21 - $87.62 -
Barton TUPHblox Size 4 Double Block
$89.41 - $145.81 -
Barton TUPHblox Size 6 Double Block
$89.84 - $144.40 -
14% offRonstan Series 40 Ball Bearing Double Block - RF40200
$103.81$88.33 -
Wichard Fixed Eye Double Plain Bearing Block - 25 mm (63/64") - 61213W
$63.37 -
Wichard Double Ball Bearing Block with Swivel Head - 45 mm (1 49/64") - 73205W
$125.76 -
Wichard Triple Ball Bearing Block with Swivel Head, Becket & Cam - 45 mm (1 49/64") - 73308W
$354.30 -
Wichard Stainless Steel Double Block - 24 mm (15/16")
$46.55 - $63.37 -
Wichard Double Ball Bearing Block - 55 mm (2 11/64")
$188.00 - $209.05 -
Wichard Double Plain Bearing Block - 35 mm (1 3/8")
$76.15 - $84.30