Welcome to Defender Canada! 
Water Heaters
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Kuuma Marine Water Heater - 6 gal - 11811
$524.52 -
Raritan 1700 Series Marine Water Heater Front Heat Exchanger
$1,746.31 - $2,039.38 -
Seaward Marine Water Heater - 6 Gal Front Heat Exchange
$732.39 - $909.24 -
9% offIsotemp Basic 75L Marine Water Heater
$1,642.60 - $1,676.35$1,478.44 - $1,508.82 -
Seaward Marine Water Heater with Rear Heat Exchanger
$729.69 - $774.24 -
9% offIsotemp Slim 15L Marine Water Heater
$1,138.82 - $1,142.87$1,025.02 - $1,028.66 -
Seaward Marine Water Heater - 11 Gal Front Heat Exchange
$835.05 - $1,056.45 -
9% offIsotemp SPA 40L Marine Water Heater
$1,063.22 - $1,091.57$956.98 - $982.49 -
9% offIsotemp Basic 40L Marine Water Heater
$1,398.17 - $1,421.10$1,258.44 - $1,279.08 -
9% offIsotemp SPA 20L Marine Water Heater
$945.71 - $988.91$851.21 - $890.09 -
9% offIsotemp Basic 24L Marine Water Heater
$1,354.92 - $1,356.27$1,219.52 - $1,220.73 -
9% offIsotemp SPA 15L Marine Water Heater
$839.05 - $938.93$755.21 - $845.11 -
Seaward Marine Water Heater - 11 Gal Rear Heat Exchange
$822.90 - $1,015.95 -
Seaward Marine Water Heater - 20 Gal - H2050EW
$1,412.92 -
9% offIsotemp Square 16L Marine Water Heater
$1,500.61 - $1,584.31$1,350.63 - $1,584.31 -
9% offIsotemp Basic 30L Marine Water Heater
$1,377.88 - $1,398.13$1,240.18 - $1,258.41 -
Kuuma Marine Water Heater - 20 Gal - 11870
$994.48 -
Kuuma Marine Water Heater - 6 Gal - 11812
$538.02 -
Isotemp Replacement Water Heater Element
$85.63 - $96.43 -
Kuuma Marine Water Heater - 11 Gal - 11840
$682.57 -
Kuuma Marine Water Heater - 6 gal - 11810
$538.02 -
Seaward Marine Water Heater - 6 Gal Rear Heat Exchange
$776.94 - $906.54 -
Seaward Replacement Temperature and Pressure Relief Valve - 75974
$47.83 -
9% offIsotemp Slim 20L Marine Water Heater
$1,183.42 - $1,198.27$1,065.16 - $1,078.53 -
9% offIsotemp SPA 30L Marine Water Heater
$987.60 - $1,038.90$888.91 - $935.08 -
9% offIsotemp Slim 25L Marine Water Heater
$1,273.91 - $1,296.86$1,146.60 - $1,167.26 -
Raritan Temperature and Pressure Safety Relief Valve
$59.98 - $69.43 -
Seaward Hot Water Heater for Outboard Boats - 3 Gal - S360EW
$991.58 -
9% offIsotemp SPA 25L Marine Water Heater
$982.18 - $1,029.43$884.03 - $926.56 -
Seaward Replacement Heating Element
$32.98 - $41.08 -
Raritan Screw-In Replacement Heating Element
$46.48 - $50.53 -
Raritan Water Heater Thermostat - WH16
$100.48 -
Kuuma Marine Water Heater Element - 02858
$47.83 -
9% off
Isotemp Basic 40 TCT Dual Coil Marine Water Heater
$1,526.40 - $1,557.45$1,373.85 - $1,401.80 -
Seaward Replacement Water Heater Thermostat - 73129
$19.20 -
Seaward High Temperature Limit Switch
$25.83 - $50.53 -
Kuuma Replacement Water Heater Thermostat - 11930
$47.83 -
Kuuma Marine Water Heater - 11 Gal - 11842
$683.92 -
Seaward Marine Water Heater - S300W
$828.23 -
Raritan Bolt-On Replacement Heating Element
$49.18 - $53.23 -
Whale Quick Connect Flexible Heater Connector - WX1519B
$22.94 -
Kuuma High Temperature Limiter - 11920
$50.53 -
Seaward Replacement Heating Element for S300W/S350W - 75586
$38.38 -
Kuuma Pressure Relief Valve - 10473
$20.94 -
Kuuma Replacement Heater Element Gasket - 06822
$2.04 -
Kuuma Water Heater Element - 02152
$27.58 -
Kuuma Nylon Drain Valve - 11523
$11.41