Welcome to Defender Canada! 
Single Blocks
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Barton Ball Bearing Double Tang Single Block
$27.56 - $84.80 -
Harken Ratchamatic HTE Block with Swivel and 2x Grip - 57 mm (2 1/4") - 2168.HTE
$190.88 -
Harken Micro Anti-Capsize Block - 22 mm (7/8") - 443
$35.78 -
Harken Aluminum Element Mast Base Block with Swivel - 80 mm (3 1/8") - 6221
$155.77 -
Harken Single Fixed Head Block - 16 mm (5/8") - 404
$25.91 -
Lewmar HTX Stand-Up Block - 72 mm (2 13/16") - 29197211
$338.98 -
Lewmar Synchro Stand Up Block - 60 mm (2 3/8") - 29926000BK
$145.81 -
Harken Bullet Block with Becket - 29 mm (1 1/8") - 083
$34.37 -
Lewmar Synchro Control Stand-Up Block - 30 mm (1 3/16") - 29901320BK
$31.60 -
Lewmar Synchro Control Stand-Up Block - 40 mm (1 9/16") - 29901420BK
$54.16 -
Ronstan Series 20 Ball Bearing Block - 20 mm (3/4") - RF25109
$21.92 -
Ronstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35101D
$45.89 -
Ronstan Series 55 Ratchet Orbit Block - 55 mm (2 5/32") - RF56110
$127.13 -
Ronstan Series 60 Core Block - 60 mm (2 3/8") - RF64100
$156.64 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15101
$19.08 -
Ronstan Series 15 Ball Bearing Utility Block - 15 mm (5/8") - RF15141
$28.88 -
Ronstan Series 60 AP Block - RF66100
$76.05 -
Schaefer 3 Series Block - 03-03
$106.33 -
Ronstan Series 30 Ball Bearing Single Block with Swivel Shackle - RF30100
$45.53 -
Ronstan Series 30 Ball Bearing Loop Top Single Block - RF30101
$31.06 -
Ronstan Series 40 Ball Bearing Single Orbit Block with Becket & Cleat - RF45130
$140.46 -
Ronstan Series 50 All Purpose Single Stand Up Block - RF51140
$72.18 -
Ronstan Series 25 Single Utility Block with Swivel Fork Shackle - RF573
$30.59 -
Wichard Stainless Steel Single Block - 24 mm (15/16")
$28.01 - $53.11 -
59% offAllen Brothers Single Block with Ingerfield Clip - Laser Traveler - 29 mm (1 1/16") - A.178-74
$7.65$3.07 -
72% offAllen Brothers Single Block - Mid Boom - 38 mm (1 1/2") - A.278
$10.47$2.92 -
57% offAllen Brothers Plain Block - Rear Boom - 38 mm (1 1/2") - A.378
$14.68$6.24 -
Barton Size 7 Plain Sheave Single Toggle Head Bearing Block - N07090
$64.71 -
Barton Size 1 Stainless Steel Single Block
$16.11 - $28.95 -
Barton Size 3 Wooden Single Block
$222.80 - $268.29 -
Barton Top Opening Stainless Steel Industrial Block
$107.03 - $354.38 -
Barton Size 6 Ball Bearing Single Block
$64.19 - $212.20 -
Harken 90 deg. Carbo Block - 40 mm (1 9/16") - 2659
$61.16 -
Harken 90 deg. Carbo Block - 29 mm (1 1/8") - 352
$34.37 -
Harken Narrow Ferrule Head Block - 16 mm (5/8") - 467
$30.14 -
Harken Micro Forkhead Block - 22 mm (7/8") - 377
$34.37 -
Lewmar HTX Web Block - 60 mm (2 3/8") - 29196047
$116.20 -
Lewmar Control Single Block with Sheave - 40 mm (1 9/16") - 29901401BK
$40.06 -
Lewmar Racing Single Stand Up Block - 60 mm (2 3/8") - 29901600BK
$420.76 -
Lewmar High Load Racing Single Block
$619.57 - $993.22 -
Harken T18 Soft Attach Block - 18 mm (23/32") - 2698
$37.19 -
Lewmar SC Single Ratchet Block - 60 mm (2 3/8") - 29901661BK
$131.71 -
Lewmar Single Block - 60 mm (2 3/8") - 29901665BK
$144.40 -
Ronstan Series 20 Block - 20 mm (3/4") - RF20111
$23.89 -
Ronstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35100A
$47.20 -
Ronstan Series 30 Orbit Block - 30 mm (1 3/16") - RF35100D
$54.64 -
Ronstan Series 30 Orbit Stand-Up Block - 30 mm (1 3/16") - RF35140
$43.87 -
Ronstan Series 40 Block - 40 mm (1 9/16") - RF41111
$43.87