Welcome to Defender Canada! 
Upright & Lead Blocks
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Schaefer Hinged Half-Moon Mast Base Block - 32-17
$678.16 -
14% offSchaefer Clamp-On Lead 5-Block Kit with 90'-3/8" Line - 3100-19
$754.11$641.09 -
14% offSchaefer Clamp-On Lead 4-Block Kit with 70'-5/16" Line - 2100-19
$638.18$542.54 -
14% offSchaefer Clear Step Furling Lead Block Kit - 300-76
$589.84$501.46 -
14% offSchaefer Clamp-On Furling Lead Block Kit - 300-75
$573.28$487.38 -
Schaefer Clamp-On Lead 3-Block Kit with 50'-5/16" Line - 1100-19
$478.08 -
9% offHarken Carbo Furling Lead Block Kit - 7404
$476.63$429.03 -
14% offRonstan Series 60 Pivoting Low-Lead Ratchet Block with Cleat - RF62175
$409.06$347.79 -
9% offHarken Ratchamatic Small Boat Flip Flop Block - 57 mm (2 1/4") - 2144
$348.29$313.53 -
9% offHarken Aluminum Mastbase Block - 57 mm (2 1/4") - 1988
$327.59$294.90 -
9% offHarken Over The Top Single Block - 57 mm (2 1/4") - 3002
$327.59$294.90 -
14% offSchaefer Clamp-On Pulpit Furling Lead Block - 500-35
$306.94$260.99 -
14% offSchaefer Hinged Fairlead Block - 506-32
$291.76$248.09 -
9% offHarken Reflex Furling Lead Block Kit - 7356
$266.87$240.25 -
14% offSchaefer Clear Step Outside Furling Lead Block - 706-44
$255.88$217.59 -
24% offSchaefer 7 Series Over The Top Block
$246.22 - $330.40$209.38 - $247.95 -
14% offSchaefer Hinged Fairlead Block - 300-32
$231.04$196.48 -
14% offSchaefer 5 Series Over The Top Block
$186.88 - $305.56$158.94 - $305.56 -
14% offSchaefer Clamp-On Pulpit Furling Lead Block - 300-35
$186.88$158.94 -
9% offHarken Halyard Restrainer - 31 mm (1 1/4") - 945
$152.33$137.16 -
9% offHarken Carbo Ratchet Block - 57 mm (2 1/4") - 7402
$146.81$132.20 -
9% offHarken Big Bullet Upright Block - 38 mm (1 1/2") - 223
$123.35$111.08 -
9% offHarken Double Stanchion Mount Lead Block - 40 mm (1 9/16") - 7405
$123.35$111.08 -
9% offHarken Carbo Lead Block - 40 mm (1 9/16") - 2156
$121.97$109.84 -
9% offHarken Upright Lead Block - 57 mm (2 1/4") - 206
$120.59$108.60 -
9% off
Harken Halyard Restrainer - 25 mm (15/16") - 944
$117.83$106.11 -
Ronstan Swivel 180 Cleat Platform - RF5
$106.06 -
9% off
Harken Carbo Lead Block - 40 mm (1 9/16") - 2157
$115.07$103.63 -
9% offHarken Carbo Lead Block - 29 mm (1 1/8") - 395
$106.79$96.18 -
14% offSchaefer 3 Series Over The Top Block
$110.98 - $316.60$94.42 - $316.60 -
Ronstan Stanchion Block - 20 mm (3/4") - RF3
$92.91 -
Ronstan Series 30 Upright Lead Block - 30 mm (1 3/16") - RF30174
$92.91 -
9% off
Harken Carbo Lead Block - 29 mm (1 1/8") - 396
$99.89$89.97 -
Ronstan Series 55 Orbit Block - 55 mm (2 5/32") - RF55171
$89.28 -
14% offSchaefer Clear Step Outside Furling Lead Block - 506-44
$102.70$87.39 -
Barton Size 4/5 Single Stanchion Lead Block - N05190
$79.16 -
14% offSchaefer Halyard Lift Turning Block - 303-50
$91.66$78.00 -
14% offSchaefer Clamp-On Stanchion Furling Lead Block - 300-34
$90.28$76.83 -
Allen Brothers Stanchion Mounted Single Furling Lead Block - 25 mm (1") - PA0450A-1
$75.10 -
Barton Size 2 Ball Bearing Stanchion Double Block - N12290
$72.83 -
9% offHarken Stanchion Mount Carbo Block - 40 mm (1 9/16") - 7401
$79.19$71.34 -
9% offHarken Carbo Outboard Lead Block Assembly - 29 mm (1 1/8") - 7403
$75.05$67.61 -
Barton Size 4/5 Single Upright Plain Sheave Bearing Block with Fairlead - N04151
$67.29 -
9% offHarken Double Upright Lead Bullet Block - 29 mm (1 1/8") - 220
$72.29$65.13 -
9% offHarken Big Bullet Upright Block - 38 mm (1 1/2") - 222
$69.53$62.64 -
Barton Size 2 Stanchion Lead Double Block
$57.70 - $61.28 -
9% offHarken Flip-Flop Block - 16 mm (5/8") - 437
$64.01$57.68 -
Spinlock Compact Stanchion Lead Block - WL/2
$56.61