Welcome to Defender Canada! 
Deals
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19% off
Blue Sea Systems A-Series Toggle Circuit Breaker
$22.19 - $64.82$22.19 - $64.82 -
9% off
Blue Sea Systems C-Series Toggle Circuit Breaker
$61.90 - $245.86$55.77 - $245.86 -
9% offBlue Sea Systems ANL Fuse
$37.08 - $69.20$37.08 - $69.20 -
9% offSpectra Watermakers Charcoal Filter Element - FT-FTC-CC
$35.64$32.13 -
14% offBlue Sea Systems Surface Mount 187-Series Thermal Circuit Breaker
$101.32 - $165.56$101.32 - $165.56 -
9% offSpectra Watermakers SC-1 Storage Compound - KIT-CHEM-SC1
$35.64$32.13 -
14% offBlue Sea Systems A-Series Flat Rocker Circuit Breaker
$34.16 - $67.74$34.16 - $67.74 -
9% offSpectra Watermakers 5 Micron Filter Element - FT-FTC-5
$29.78$26.86 -
9% offSpectra Watermakers Desalinator Replacement Shurflo Feed Pump Head - PL-PMP-SFPH
$353.90$318.57 -
9% offSpectra Watermakers 20 Micron Filter Element - FT-FTC-20
$29.78$26.86 -
9% offSpectra Watermakers Basic Cruise Kit A - KIT-BCK-A
$251.72$226.60 -
9% offBlue Sea A-Series ELCI Main Residual Current Flat Rocker Circuit Breaker - 3102100
$472.16$425.01 -
14% offBlue Sea Systems Push Button Reset-Only Circuit Breaker
$7.78 - $72.12$7.07 - $72.12 -
9% offSpectra Watermakers Desalinator EL-FP Replacement SHURflo Feed Pump
$686.82$618.20 -
9% offSpectra Watermakers SC-2 Alkaline Cleaning Chemical - KIT-CHEM-SC2
$35.64$32.13 -
19% offBlue Sea Systems 285-Series Circuit Breaker Panel Mount
$61.90 - $75.04$55.77 - $75.04 -
19% off
Blue Sea Systems Contura III Water Resitant Rocker Switch
$13.67 - $26.51$13.46 - $26.51 -
9% offSpectra Watermakers SC-3 Acid Cleaning Chemical - KIT-CHEM-SC3
$35.64$32.13 -
19% offBlue Sea Systems 187-Series Thermal Circuit Breaker
$114.46 - $169.94$91.69 - $169.94 -
9% offBlue Sea Water-Resistant Accessory Panel - 4366
$123.22$110.96 -
28% off
Blue Sea Systems MIDI/AMI Fuses
$10.10 - $12.38$7.24 - $12.38 -
9% offBlue Sea Systems DC Analog Ammeter
$50.22 - $115.92$45.26 - $115.92 -
29% offBlue Sea Systems AGC Fuses
$4.06 - $13.52$2.85 - $13.52 -
9% offSpectra Watermakers Desalinator Replacement Charcoal Filter Housing O-Ring - SO-FHS-3PCS10
$6.42$5.84 -
9% offSpectra Watermakers Desalinator Replacement SHURflo Feed Pump Diaphragm Drive Kit - EL-FP-DP
$133.47$120.18 -
9% offBlue Sea Systems HD-Series Selector Battery Switch
$148.04 - $168.48$133.30 - $168.48 -
9% offBlue Sea ST-Blade Battery Terminal Mount Fuse Block - 5023
$38.54$34.75 -
9% offBlue Sea ST-Blade Battery Terminal Mount Fuse Block Kit - 5024
$44.38$40.00 -
13% offBlue Sea Systems MAXI Fuses
$5.42 - $9.23$5.42 - $9.23 -
9% offSpectra Watermakers Handheld Salinity Meter - KIT-HHM
$45.84$41.32 -
14% offBlue Sea Marine-Grade Short Stop DC Circuit Breakers
$12.15 - $14.56$10.41 - $14.56 -
9% offBlue Sea Systems Dual Socket Panel - 12V - 1472
$70.66$63.66 -
19% offBlue Sea Systems MEGA/AMG Fuses
$14.42 - $17.02$13.36 - $17.02 -
9% offBlue Sea Water-Resistant Accessory Panel - 4365
$107.16$96.51 -
9% off
Spectra Watermakers Desalinator Replacement Filter Housing O-Ring - SO-FHS-10H
$5.07$4.61 -
33% offBlue Sea ATO/ATC-Style Low Profile Circuit Breakers
$13.78 - $17.42$11.06 - $17.42 -
29% offBlue Sea Systems ATM Fuses
$4.10$2.92 - $4.19 -
13% off
Blue Sea Systems Push Button Reset-Only Circuit Breaker Boots
$6.63$5.74 - $6.64 -
19% offBlue Sea Water-Resistant Accessory Panel - 4368
$207.90$166.44 -
9% offBlue Sea Systems Powerpost Plus Cable Connector
$40.00 - $41.46$36.06 - $41.46 -
14% off
Blue Sea Systems Contura III Water Resistant Dimmer Switch
$19.04 - $20.28$16.28 - $20.28 -
9% offBlue Sea m-LVD Replacement Remote Control Switch - 7928
$24.50$22.10 -
14% offBlue Sea Systems 360 Series LED Voltage Conversion Kit - 4113
$12.41$10.64 -
13% offBlue Sea Systems ATM 5-Piece Fuse Kit - 5286
$5.17$4.48 -
13% offBlue Sea Systems Mounting Bracket for 12V Socket - 1014
$7.07$6.10 -
27% offBlue Sea Systems Short Stop Circuit Breaker Boot - 7160
$2.67$1.94 -
Blue Sea Water-Resistant Accessory Panel - 4369
$53.29 -
19% offBlue Sea USB 2.0 Extension - 1044
$44.38$35.62