Welcome to Defender Canada! 
Double Blocks
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19% offRonstan Series 40 All Purpose Double Block - RF41200
$61.86 -
19% offRonstan Series 40 Ball Bearing Double Orbit Block - RF48210
$111.28 -
19% offRonstan Series 50 Block - 50 mm (2") - RF51200
$87.54 -
Up to 9% offLewmar Synchro Control Double Block - 40 mm (1 9/16")
$98.30 - $102.10 -
19% offRonstan Series 20 Double Block - 20 mm (3/4") - RF20212
$41.88 -
19% offRonstan Series 50 Double Block - 50 mm (2") - RF51210
$108.44 -
19% offRonstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15202
$29.63 -
Up to 14% offLewmar HTX Double Block - 50 mm (2")
$109.65 - $189.52 -
19% offRonstan Series 20 Double Block - 20 mm (3/4") - RF20202
$37.88 -
19% offRonstan Series 30 Orbit Double Block - 30 mm (1 3/16") - RF35212
$48.54 -
19% offRonstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15212
$32.75 -
14% offSchaefer 5 Series Double Block - 504-25
$221.11 -
14% offSchaefer 5 Series Double Block - 505-25
$266.65 -
14% offSchaefer 7 Series Double Block - 705-25
$348.15 -
19% offRonstan Series 30 Utility Double Block - RF417
$27.06 -
Up to 9% offLewmar Synchro Control Double Block - 30 mm (1 1/4")
$61.50 - $64.03 -
19% offRonstan Series 30 Orbit Double Block - 30 mm (1 3/16") - RF35202
$45.86 -
14% offSchaefer 7 Series Double Block - 704-25
$321.78 -
24% offAntal Looper Double Block with Becket - LS1063
$219.49 -
9% offLewmar Synchro Double Block - 90 mm (3 1/2") - 29929002BK
$302.63 -
19% offRonstan Series 55 Ball Bearing Orbit Double Block - 55 mm (2 5/32") - RF55210
$118.81 -
19% offRonstan Series 60 Core Double Block - 60 mm (2 3/8") - RF64202
$261.35 -
19% offRonstan Series 75 Core Double Block - 75 mm (3") - RF74202
$291.54 -
39% offSchaefer 5 Series Double Block - 504-35
$147.79 -
9% offSchaefer 7 Series Double Block - 706-25
$368.59 -
19% offRonstan Series 40 Ball Bearing Double Block - RF40200
$83.17 -
19% offRonstan Series 100 Double Core Block - RF104200
$810.84