Welcome to Defender Canada! 
Single Blocks
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Barton Size 1 Stainless Steel Single Block
$15.78 - $28.35 -
Barton Size 7 Ball Bearing Single Block
$75.46 - $233.00 -
Barton Size 7 Plain Sheave Single Bearing Block with Swivel - N07130
$133.44 -
9% offHarken Carbo Air Block - 75 mm (2 15/16") - 2661
$153.71$138.41 -
9% offHarken Midrange Block - 76 mm (3") - 1541
$218.57$196.78 -
9% offHarken Big Bullet Block - 38 mm (1 1/2") - 126
$57.11$51.47 -
9% offHarken Carbo Air Block - 40 mm (1 9/16") - 2646
$178.55$160.76 -
Lewmar HTX Block - 90 mm (3 1/2")
$457.38 - $660.24 -
Antal OPF Swivel Block
$121.18 - $199.77 -
9% offHarken Carbo Ratchamatic Block - 57 mm (2 1/4") - 2625
$166.13$149.58 -
9% offHarken Ratchamatic Block with Swivel - 75 mm (2 15/16") - 2680
$230.99$207.96 -
9% offHarken Micro Forkhead Block - 22 mm (7/8") - 377
$33.65$30.35 -
9% offHarken Single Block with Swivel - 16 mm (5/8") - 417
$44.69$40.29 -
Lewmar Synchro Control Stand-Up Block - 30 mm (1 3/16") - 29901320BK
$30.94 -
Ronstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35100A
$46.21 -
Ronstan Series 40 Block - 40 mm (1 9/16") - RF41111
$42.95 -
Ronstan Series 50 Block - 50 mm (2") - RF51101
$47.85 -
Ronstan Series 55 RT Orbit Ratchet Block - 55 mm (2 5/32") - RF56100
$127.70 -
Ronstan Series 60 Core Stand-Up Block - 60 mm (2 3/8") - RF64140
$270.33 -
Ronstan Series 75 Core Mast Base Block - 75 mm (3") - RF74108A
$147.17 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15101
$18.69 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15111
$21.75 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15141
$28.28 -
14% offSchaefer 3 Series Block - 300-05
$135.82$115.54 -
Schaefer 3 Series Block - 03-03
$94.42 -
24% offSchaefer 8 Series Block - 08-05-UC
$502.90$377.32 -
Lewmar HTX Stand-Up Block - 72 mm (2 13/16") - 29197211
$331.78 -
Barton Ball Bearing Stand-Up Single Block
$29.73 - $228.45 -
Barton Size 3 Wooden Single Block
$218.07 - $262.59 -
Barton High Load Wire Rope Block
$75.24 - $81.02 -
Barton Size 6 Single Block
$46.17 - $204.93 -
Lewmar High Load Racing Block with Becket - 155 mm (6 1/10") - 29941154
$1,943.65 -
55% offAllen Brothers Single Block with Ingerfield Clip - Laser Traveler - 29 mm (1 1/16") - A.178-74
$7.50$3.36 -
67% offAllen Brothers Single Block - Mid Boom - 38 mm (1 1/2") - A.278
$10.26$3.36 -
47% offAllen Brothers Plain Block - Rear Boom - 38 mm (1 1/2") - A.378
$14.38$7.50 -
14% offAntal Looper Block with Becket - LS1061
$185.50$157.77 -
14% offAntal Looper Block with Becket - LS1071
$258.64$219.94 -
Barton Ratchet Block - 55 mm (2 5/32") - 90500
$162.25 -
Barton Size 7 Plain Sheave Single Toggle Head Bearing Block - N07090
$63.35 -
9% offHarken Carbo Air Block Swivel/Becket - 75 mm (2 15/16") - 2671
$160.61$144.62 -
9% offHarken T18 Soft Attach Block - 18 mm (23/32") - 2698
$35.03$31.59 -
9% offHarken Big Bullet Block - 38 mm (1 1/2") - 169
$72.29$65.13 -
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