Welcome to Defender Canada! 
Water Heaters & Components
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Isotemp SPA 50L Marine Water Heater
$1,533.74 - $1,577.54 -
Raritan Temperature and Pressure Safety Relief Valve
$64.82 - $75.04 -
Whale Quick Connect Flexible Heater Connector - WX1519B
$24.76 -
Seaward High Temperature Limit Switch
$26.86 - $54.60 -
Seaward Hot Water Heater for Outboard Boats - 3 Gal - S360EW
$1,072.31 -
Seaward Marine Water Heater - S300W
$895.65 -
Seaward Marine Water Heater - 11 Gal - S1200E
$1,070.93 -
Seaward Marine Water Heater with Rear Heat Exchanger
$789.09 - $837.27 -
Seaward Replacement Heating Element for S300W/S350W - 75586
$41.46 -
Seaward Replacement Heating Element
$35.62 - $44.38 -
Seaward Replacement Temperature and Pressure Relief Valve - 75974
$51.68 -
Seaward Replacement Water Heater Thermostat - 73129
$20.72 -
Seaward Marine Water Heater - 6 Gal Front Heat Exchange
$792.01 - $983.27 -
Seaward Marine Water Heater - 6 Gal Rear Heat Exchange
$866.47 - $980.35 -
Seaward Marine Water Heater - 11 Gal Front Heat Exchange
$903.03 - $1,142.47 -
Seaward Marine Water Heater - 11 Gal Rear Heat Exchange
$889.89 - $1,098.67 -
Raritan Water Heater Thermostat - WH16
$108.62 -
Raritan 1700 Series Marine Water Heater Front Heat Exchanger
$1,898.76 - $2,214.24 -
Raritan Bolt-On Replacement Heating Element
$53.14 - $57.52 -
Raritan Screw-In Replacement Heating Element
$50.22 - $54.60 -
Kuuma Pressure Relief Valve - 10473
$24.89 -
Kuuma Replacement Water Heater Thermostat - 11930
$51.68 -
Kuuma Thermo-O-Disc High Temp Limiter with Reset Button - 120V - 11926
$53.14 -
Kuuma Water Heater Element - 02152
$40.00 -
Kuuma High Temperature Limiter - 11920
$54.60 -
Kuuma High Temperature Limiter - 11921
$51.68 -
Kuuma Marine Water Heater - 6 gal - 11810
$723.42 -
Kuuma Marine Water Heater - 6 gal - 11811
$627.06 -
Kuuma Marine Water Heater - 11 Gal - 11841
$792.09 -
Kuuma Marine Water Heater - 11 Gal - 11840
$738.12 -
Kuuma Marine Water Heater - 11 Gal - 11842
$917.70 -
Kuuma Marine Water Heater - 20 Gal - 11870
$1,189.32 -
Kuuma Marine Water Heater - 5 Gal - 11800
$562.82 -
Kuuma Marine Water Heater - 6 Gal - 11812
$723.42 -
Kuuma Marine Water Heater Element - 02858
$56.06 -
Kuuma Nylon Drain Valve - 11523
$12.29 -
Isotemp Basic 24L Marine Water Heater
$1,465.25 - $1,466.71 -
Isotemp Basic 30L Marine Water Heater
$1,490.08 - $1,511.98 -
Isotemp Replacement Water Heater Element
$92.56 - $104.24 -
Isotemp Replacement Water Heating Element - SEE00016LA
$107.16 -
Isotemp Slim 25L Marine Water Heater
$1,377.64 - $1,402.46 -
Isotemp SPA 30L Marine Water Heater
$1,068.01 - $1,123.49 -
Isotemp SPA 40L Marine Water Heater
$1,149.79 - $1,180.45