Welcome to Defender Canada! 
Double Blocks
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Harken Big Bullet Double Block - 38 mm (1 1/2") - 127
$131.66 -
Harken Big Bullet Double Block - 38 mm (1 1/2") - 128
$137.30 -
Harken Carbo Air Block Double Block - 40 mm (1 9/16") - 2642
$103.46 -
Harken Aluminum Element Double Block Swivel - 45 mm (1 3/4") - 6238
$148.93 -
Harken Aluminum Element Double Block Swivel - 45 mm (1 3/4") - 6239
$166.06 -
Schaefer 5 Series Double Block - 504-25
$260.02 -
Schaefer 5 Series Double Block - 505-25
$313.60 -
Schaefer 7 Series Double Block - 705-25
$409.48 -
Harken Micro Double Block - 22 mm (7/8") - 227
$58.34 -
Harken Bullet Block Double - 29 mm (1 1/8") - 085
$83.72 -
9% off MSRPMSRP (Manufacturer's Suggested Retail Price)Set by the manufacturer and displayed for comparison purposes only.
Lewmar Synchro Control Double Block - 30 mm (1 1/4")
MSRP: $64.03 - $68.26$61.50 - $64.03 -
Barton Size 1 Ball Bearing Double Block
$42.77 - $68.36 -
Harken Double Block - 16 mm (5/8") - 406
$52.70 -
Ronstan Series 30 Orbit Double Block - 30 mm (1 3/16") - RF35202
$57.18 -
Schaefer 7 Series Double Block - 704-25
$378.46 -
24% off MSRPMSRP (Manufacturer's Suggested Retail Price)Set by the manufacturer and displayed for comparison purposes only.
Antal Looper Double Block with Becket - LS1063
MSRP: $292.45$219.49 -
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 2 Double Block
$31.87 - $64.25 -
Barton Size 7 Double Block
$106.04 - $116.02 -
Barton Size 0 Ball Bearing Double Block
$39.40 - $56.72 -
Barton Size 6 Ball Bearing Double Block
$117.53 - $122.44 -
Barton Size 7 Ball Bearing Double Block
$145.49 - $156.22 -
Lewmar Racing Double Block - 60 mm (2 3/8") - 29901612BK
$408.07 -
Lewmar Racing Double Block - 80 mm (3 1/8") - 29901812BK
$423.58 -
Ronstan Series 55 Ball Bearing Orbit Double Block - 55 mm (2 5/32") - RF55210
$148.37 -
Ronstan Series 60 Core Double Block - 60 mm (2 3/8") - RF64202
$326.53 -
Harken Carbo Air Block - 40 mm (1 9/16") - 2643
$111.92 -
Harken Aluminum Element Double Block with Swivel and Becket - 80 mm (3 1/8") - 6297
$366.72 -
39% off MSRPMSRP (Manufacturer's Suggested Retail Price)Set by the manufacturer and displayed for comparison purposes only.
Schaefer 5 Series Double Block - 504-35
MSRP: $245.92$147.79 -
9% off MSRPMSRP (Manufacturer's Suggested Retail Price)Set by the manufacturer and displayed for comparison purposes only.
Schaefer 7 Series Double Block - 706-25
MSRP: $409.48$368.59 -
Ronstan Series 40 Ball Bearing Double Block - RF40200
$103.81 -
Wichard Fixed Eye Double Plain Bearing Block - 25 mm (63/64") - 61213W
$63.37 -
Wichard Stainless Steel Double Block - 24 mm (15/16")
$46.55 - $63.37 -
Wichard Double Plain Bearing Block - 35 mm (1 3/8")
$76.15 - $84.30 -
Wichard Double Plain Bearing Block - 45 mm (1 49/64")
$84.30 - $94.81 -
Wichard Double Plain Bearing Block - 55 mm (2 11/64")
$125.76 - $155.85 -
Ronstan Series 100 Double Core Block - RF104200
$1,013.38 -
Barton Size 6 Double Swivel Block
$148.90 - $161.80
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