Welcome to Defender Canada! 
Upright & Lead Blocks
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Barton Ball Bearing Upright Single Block
$38.51 - $72.44 -
Barton Size 2 Stanchion Lead Double Block
$54.71 - $58.08 -
Barton Upright Wire Rope Block
$54.52 - $95.86 -
Barton Spinnaker Single Lead
$30.63 - $34.34 -
Barton Ball Bearing Upright Double Block
$53.13 - $104.29 -
Barton Ball Bearing Stanchion Lead Single Block
$46.18 - $121.15 -
Barton Ball Bearing Spinnaker Single Lead
$33.97 - $37.64 -
Barton Upright Double Block
$41.55 - $90.58 -
Barton Upright Single Block
$33.42 - $64.06 -
Barton Size 3 Stanchion Lead Single Block
$43.95 - $121.25 -
Barton Size 2 Stanchion Lead Single Block - N02190
$40.00 -
Barton Size 2 Ball Bearing Stanchion Double Block - N12290
$73.13 -
Barton Size 1 Lead Block - N01190
$14.19 -
Barton Size 1 Ball Bearing Lead Block - N11190
$17.65 -
9% offLewmar Control Vertical Lead Block - 40 mm (1 9/16") - 29901463BK
$54.60$49.20 -
9% offLewmar Control Vertical Lead Block - 30 mm (1 3/16") - 29901363BK
$40.00$36.06 -
Harken Flip-Flop Block - 16 mm (5/8") - 437
$67.69 -
Harken Ratchamatic Small Boat Flip Flop Block - 57 mm (2 1/4") - 2144
$368.45 -
Harken Double Stanchion Mount Lead Block - 40 mm (1 9/16") - 7405
$130.47 -
Harken Reflex Furling Lead Block Kit - 7356
$282.31 -
Harken Aluminum Mastbase Block - 57 mm (2 1/4") - 1988
$346.55 -
9% offSchaefer 2-Series Fixed Fairlead/Ball Bearing Block - 200-31
$61.90$55.77 -
9% offSchaefer 7 Series Over The Top Block
$260.46 - $349.52$234.48 - $314.63 -
14% offSchaefer 5 Series Over The Top Block
$197.68 - $323.24$168.12 - $290.98 -
9% offSchaefer 3 Series Over The Top Block
$117.38 - $334.92$105.70 - $301.49 -
Spinlock Compact Stanchion Lead Block - WL/2
$59.86 -
14% offSchaefer Clamp-On Pulpit Furling Lead Block - 300-35
$197.68$168.12 -
14% offSchaefer Clamp-On Pulpit Furling Lead Block - 500-35
$324.70$276.09 -
14% offSchaefer Clamp-On Stanchion Furling Lead Block - 300-34
$95.48$81.25 -
14% offSchaefer Clear Step Furling Lead Block Kit - 300-76
$624.00$530.49 -
14% offSchaefer Clear Step Outside Furling Lead Block - 506-44
$108.62$92.42 -
14% offSchaefer Clear Step Outside Furling Lead Block - 706-44
$270.68$230.17 -
14% offSchaefer Halyard Lift Turning Block - 303-50
$96.94$82.49 -
14% offSchaefer Hinged Fairlead Block - 300-32
$244.40$207.83 -
14% offSchaefer Hinged Fairlead Block - 506-32
$308.64$262.43 -
14% offSchaefer Hinged Half-Moon Mast Base Block - 32-17
$717.44$609.91 -
14% offSchaefer 3 Series Half Moon Fixed Ball Bearing Fairlead Block - 300-31
$69.20$58.91 -
14% offSchaefer Clamp-On Furling Lead Block Kit - 300-75
$532.02$452.31 -
14% offSchaefer Clamp-On Lead 3-Block Kit with 50'-5/16" Line - 1100-19
$505.76$429.99 -
14% offSchaefer Clamp-On Lead 4-Block Kit with 70'-5/16" Line - 2100-19
$675.14$573.96 -
14% offSchaefer Clamp-On Lead 5-Block Kit with 90'-3/8" Line - 3100-19
$797.79$678.22 -
9% offRonstan Series 60 Pivoting Low-Lead Ratchet Block with Cleat - RF62175
$412.30$371.13 -
19% off
Ronstan Shock Block
$22.35 - $30.12$18.00 - $24.22 -
19% offRonstan Swivel 180 Cleat Platform - RF5
$103.77$83.13 -
19% offRonstan Series 30 Upright Lead Block - 30 mm (1 3/16") - RF30171
$44.91$36.05 -
19% offRonstan Series 30 Upright Lead Block - 30 mm (1 3/16") - RF30174
$93.61$75.01 -
19% offRonstan Series 55 Orbit Block - 55 mm (2 5/32") - RF55171
$89.95$72.08 -
19% offRonstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15171
$31.77$25.54