Welcome to Defender Canada! 
Upright & Lead Blocks
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Ronstan Swivel Dead Eye & Cleat Fairlead - 1/8" - 1/2" (3 - 12 mm) - RF58
$119.53 -
Ronstan Fairlead - 9/16" (14 mm) - RF59
$12.58 -
Ronstan Upright Lead Block with Nylatron Sheave - 7/8" (22 mm) - RF453
$45.17 -
Ronstan Series 40 Ball Bearing Upright Lead Single Block - RF40171
$79.26 -
Ronstan Plastic Fairlead with Stainless Steel Liner - 11/32" (8.5 mm) - PNP121
$17.62 -
Barton Ball Bearing Upright Single Block
$39.19 - $73.72 -
Barton Size 2 Stanchion Lead Double Block
$58.94 - $62.60 -
Barton Upright Wire Rope Block
$57.05 - $95.62 -
Barton Spinnaker Single Lead
$33.01 - $36.99 -
Barton Ball Bearing Upright Double Block
$54.05 - $106.09 -
Barton Ball Bearing Stanchion Lead Single Block
$48.85 - $129.94 -
Barton Ball Bearing Spinnaker Single Lead
$36.58 - $38.29 -
Barton Upright Double Block
$43.12 - $90.25 -
Barton Upright Single Block
$34.66 - $63.82 -
Barton Size 3 Stanchion Lead Single Block
$43.79 - $125.81 -
Barton Size 2 Stanchion Lead Single Block - N02190
$39.85 -
Barton Size 2 Ball Bearing Stanchion Double Block - N12290
$74.40 -
Barton Size 1 Lead Block - N01190
$14.78 -
Barton Size 1 Ball Bearing Lead Block - N11190
$18.42 -
9% offLewmar Control Vertical Lead Block - 40 mm (1 9/16") - 29901463BK
$52.75$47.54 -
Lewmar Control Vertical Lead Block - 30 mm (1 3/16") - 29901363BK
$38.65 -
Harken Flip-Flop Block - 16 mm (5/8") - 437
$66.80 -
Harken Ratchamatic Small Boat Flip Flop Block - 57 mm (2 1/4") - 2144
$362.90 -
Harken Double Stanchion Mount Lead Block - 40 mm (1 9/16") - 7405
$128.84 -
Harken Reflex Furling Lead Block Kit - 7356
$278.30 -
Harken Aluminum Mastbase Block - 57 mm (2 1/4") - 1988
$341.75 -
14% offSchaefer 2-Series Fixed Fairlead/Ball Bearing Block - 200-31
$66.85$56.91 -
14% offSchaefer 5 Series Over The Top Block
$209.26$177.96 -
14% offSchaefer 3 Series Over The Top Block
$124.66 - $217.72$106.05 - $185.15 -
Spinlock Compact Stanchion Lead Block - WL/2
$57.83 -
14% offSchaefer Clamp-On Pulpit Furling Lead Block - 300-35
$209.26$177.96 -
14% offSchaefer Clamp-On Pulpit Furling Lead Block - 500-35
$344.62$293.02 -
14% offSchaefer Clamp-On Stanchion Furling Lead Block - 300-34
$102.10$86.88 -
9% offSchaefer Clear Step Furling Lead Block Kit - 300-76
$661.87$595.75 -
14% offSchaefer Clear Step Outside Furling Lead Block - 506-44
$116.20$98.86 -
14% offSchaefer Clear Step Outside Furling Lead Block - 706-44
$286.81$243.88 -
14% offSchaefer Halyard Lift Turning Block - 303-50
$103.51$88.07 -
14% offSchaefer Hinged Fairlead Block - 300-32
$258.61$219.91 -
14% offSchaefer Hinged Fairlead Block - 506-32
$326.29$277.44 -
14% offSchaefer 3 Series Half Moon Fixed Ball Bearing Fairlead Block - 300-31
$73.90$62.91 -
9% offSchaefer Clamp-On Furling Lead Block Kit - 300-75
$642.13$577.98 -
9% offSchaefer Clamp-On Lead 4-Block Kit with 70'-5/16" Line - 2100-19
$715.49$644.00 -
24% offSchaefer Clamp-On Lead 5-Block Kit with 90'-3/8" Line - 3100-19
$770.49$578.03 -
9% offRonstan Series 60 Pivoting Low-Lead Ratchet Block with Cleat - RF62175
$427.81$385.09 -
Ronstan Shock Block
$24.12 - $32.53 -
Ronstan Swivel 180 Cleat Platform - RF5
$101.78 -
Ronstan Series 30 Upright Lead Block - 30 mm (1 3/16") - RF30171
$45.53 -
Ronstan Series 30 Upright Lead Block - 30 mm (1 3/16") - RF30174
$94.91