Welcome to Defender Canada! 
New Arrivals
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Maptech Embassy Cruising Guide: Long Island Sound to Cape May, NJ - 20th Edition - CGLIS-20
$73.53 -
Raritan PHII/PHEII Marine Toilet Handle Socket - 1210
$32.70 -
Raritan PHII/PHEII Marine Toilet Seat Hinge Set - HINGESC1
$24.03 -
Raritan PHII/PHEII Marine Toilet Piston Multiseal O-Ring - 1232MS
$21.45 -
Maptech ChartKit - The Virgin Islands and Puerto Rico - CCK10-08
$146.53 -
Maptech Waterproof Chartbook
$86.72 -
Maptech Decorative Nautical Chart
$58.98 -
Maptech Chart Navigator Pro Software - SWCNPRO2024
$421.06 -
Raritan G13 Impeller with Washers and Pump Gaskets - G13W
$51.68 -
Raritan Icerette Icemaker Assembly - 872021
$276.55 -
Raritan ManaGerm Enzymes - 3 oz - 640121
$44.38 -
Siren Marine Wireless Entry Sensor for Siren 3 - SM-WLS3-ENTR-917
$250.24 -
Siren Marine External GPS Antenna for Siren 3 Pro - SM-ACC3-GPSA
$73.47 -
Siren Marine Wireless High-Water Sensor for Siren 3 - SM-WLS3-HIWS-917
$250.24 -
Siren Marine Siren 3 Pro Vessel Management Device - SM-S3P-917
$1,168.60 -
Siren Marine Remote Cellular & GPS Puck Antenna - SM-ACC3-RCGA-PUCK
$145.12 -
Siren Marine Remote Cellular & GPS Dome Antenna - SM-ACC3-RCGA-DOME
$146.58 -
Siren Marine Audible Alarm - SM-ACC-ALRM
$86.72 -
Siren Marine Wireless Bilge Pump Sensor for Siren 3 - SM-WLS3-BILG-917
$256.08 -
Siren Marine NMEA 2000 Connection Kit for Siren 3 - SM-ACC3-N2KCT
$57.52 -
Siren Marine PAM4 Wired DC Relay - SM-ACC-DCRE
$53.14 -
Siren Marine SirenSat Offshore Satellite Antenna - SM-SAT-OFFS
$380.18 -
Siren Marine Wireless Temperature Sensor for Siren 3 - SM-WLS3-TEMP-917
$250.24 -
Siren Marine Wired Canvas Snap Cover Sensor - SM-ACC-SNAP
$72.12 -
Siren Marine Wired Infrared Motion Sensor - SM-ACC-INFR
$256.08 -
Siren Marine Wired Magnetic REED Switch - SM-ACC-REED
$35.62 -
Siren Marine Wired Micro ePIR Motion Sensor - SM-ACC-EPIR
$275.06 -
Siren Marine Wired Shore Power Sensor Plug - SM-ACC-SHOR
$117.38 -
Siren Marine Wiring Cable 2 for Siren 3 Pro - SM-ACC3-WIRE
$34.16 -
Siren Marine Shore Power Relay
$113.00 - $169.94 -
Raritan PHII/PHEII Marine Toilet Bowl Gasket - 1234
$13.33 -
Raritan Crown Head Front Cover with O-Ring - CH18W
$64.82 -
Siren Marine Wireless Battery Sensor for Siren 3 - SM-WLS3-BATT-917
$272.41