Welcome to Defender Canada! 
Single Blocks
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Ronstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35109HL
$148.34 -
Ronstan Series 30 Orbit Stand-Up Block - 30 mm (1 3/16") - RF35141
$38.71 -
Ronstan Series 50 Block - 50 mm (2") - RF51110
$75.45 -
Ronstan Series 50 Block - 50 mm (2") - RF51111
$70.38 -
Ronstan Series 55 Ratchet Orbit Block - 55 mm (2 5/32") - RF56130
$240.36 -
Ronstan Series 60 Core Block - 60 mm (2 3/8") - RF64100AW
$233.38 -
Ronstan Series 60 Core Block - 60 mm (2 3/8") - RF64108AW
$261.34 -
Ronstan Series 60 Core Halyard Block - 60 mm (2 3/8") - RF64108
$148.40 -
Ronstan Series 75 Core Block - 75 mm (3") - RF74100AW
$344.23 -
Ronstan Series 75 Core Block - 75 mm (3") - RF74110
$258.01 -
Ronstan Series 75 Core Halyard Block - 75 mm (3") - RF74108
$171.80 -
Ronstan Series 75 Core Stand-Up Block - 75 mm (3") - RF74140
$339.31 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15180
$37.25 -
14% offSchaefer 3 Series Block - 03-02
$65.44$55.72 -
14% offSchaefer 3 Series Block - 300-02
$101.32$86.21 -
19% offSchaefer 3 Series Block - 303-13
$145.48$116.50 -
Schaefer 3 Series Block - 303-15
$141.34 -
Schaefer 3 Series Block - 03-04
$95.80 -
14% offSchaefer 3 Series Stand-Up Swivel Block - 300-62
$210.34$178.88 -
24% offSchaefer 7 Series Block - 704-15
$221.38$166.18 -
24% offSchaefer 7 Series Block - 706-15
$247.60$185.85 -
14% offSchaefer 8 Series Block - 08-15
$449.08$381.81 -
Schaefer 8 Series Block - 08-15-UC
$609.16 -
19% offSchaefer 8 Series Stand-Up Swivel Block - 08-62-UC
$632.62$506.22 -
9% offHarken Wire Bullet Block - 29 mm (1 1/8") - 098
$37.79$34.08 -
9% offHarken Dinghy Vang Lower Unit - HSB534
$211.67$190.57 -
9% offHarken Black Magic Loop Block - 75 mm (2 15/16") - 3230
$646.37$581.80 -
9% offHarken Fly Block - 29 mm (1 1/8") - 2171
$232.37$209.20 -
9% offHarken Ratchamatic HTE Block with Swivel - 57 mm (2 1/4") - 2625.HTE
$174.41$157.04 -
17% offHarken 90 deg. Carbo Block - 29 mm (1 1/8") - 352
$35.08$29.11 -
9% offHarken Forkhead Wire Block - 25 mm (1") Becket - 466
$68.15$61.40 -
9% offHarken Aluminum Element Stand-Up Block - 45 mm (1 3/4") - 6250
$233.06$209.82 -
9% offHarken Aluminum Element Stand-Up Block with Becket - 45 mm (1 3/4") - 6251
$247.69$222.99 -
9% offHarken Carbo Clew Block Assembly - 29 mm (1 1/8") - 371
$51.59$46.50 -
9% offHarken Single Fixed Head Block without Ring - 16 mm (5/8") - 404W/O
$25.66$23.15 -
9% offHarken Single Block with Becket - 16 mm (5/8") - 405
$28.13$25.38 -
9% offHarken Through-Deck Block - 16 mm (5/8") - 421
$68.15$61.40 -
9% offHarken Black Magic Aluminum Loop Block - 45 mm (1 3/4") - 3389
$282.05$253.91 -
9% offHarken Black Magic Aluminum Swivel Block - 45 mm (1 3/4")
$287.57 - $371.75$258.88 - $334.64 -
9% offLewmar HTX Block - 60 mm (2 3/8") - 27196001
$486.34$437.77 -
9% offLewmar HTX Upstand Block - 50 mm (2") - 29195011
$186.88$168.25 -
9% offLewmar HTX Web Block - 50 mm (2") - 29195047
$99.94$90.01 -
9% off
Lewmar HTX Web Block - 60 mm (2 3/8") - 29196047
$113.74$102.43 -
9% off
Lewmar HTX Upstand Block - 60 mm (2 3/8") - 29196011
$199.30$179.43 -
9% off
Lewmar HTX Web Block - 72 mm (2 13/16") - 29197247
$182.74$164.53 -
9% offLewmar Control Single Block with Sheave - 40 mm (1 9/16") - 29901401BK
$39.22$35.36 -
9% offLewmar Control Single Web Block - 30 mm (1 3/16") - 29901447BK
$40.60$36.60 -
9% offLewmar Racing Single Stand Up Block - 60 mm (2 3/8") - 29901600BK
$411.82$370.70