Welcome to Defender Canada! 
Water Heaters & Components
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9% offIsotemp SPA 50L Marine Water Heater
$1,533.74 - $1,577.54$1,380.44 - $1,419.86 -
9% off
Isotemp SPA 60L Marine Water Heater
$1,665.16 - $1,708.96$1,498.72 - $1,538.14 -
9% offRaritan Temperature and Pressure Safety Relief Valve
$64.82 - $75.04$58.40 - $67.60 -
9% offWhale Quick Connect Flexible Heater Connector - WX1519B
$24.76$22.35 -
9% offSeaward Marine Vertical Water Heater - 20 Gal Front Heat Exchange
$1,812.74 - $1,875.52$1,631.56 - $1,688.06 -
9% offSeaward Marine Water Heater - 20 Gal Front Heat Exchange
$1,352.79 - $1,669.62$1,217.60 - $1,502.74 -
9% offSeaward Marine Water Heater - 20 Gal Rear Heat Exchange
$1,411.20 - $1,637.50$1,270.16 - $1,473.83 -
9% offSeaward High Temperature Limit Switch
$26.86 - $54.60$24.24 - $49.20 -
9% offSeaward Hot Water Heater for Outboard Boats - 3 Gal - S360EW
$1,072.31$965.15 -
9% offSeaward Marine Water Heater - S300W
$895.65$806.16 -
9% offSeaward Marine Water Heater - 11 Gal - S1200E
$1,070.93$963.91 -
9% offSeaward Marine Water Heater - 20 Gal - H2050EW
$1,609.74$1,448.85 -
9% offSeaward Marine Water Heater - 20 Gal - H2250E
$1,692.99$1,523.77 -
9% offSeaward Marine Water Heater with Rear Heat Exchanger
$789.09 - $837.27$710.25 - $753.61 -
9% offSeaward Replacement Heating Element for S300W/S350W - 75586
$41.46$37.38 -
9% offSeaward Replacement Heating Element
$35.62 - $44.38$32.12 - $40.00 -
9% offSeaward Replacement Temperature and Pressure Relief Valve - 75974
$51.68$46.57 -
9% offSeaward Replacement Water Heater Thermostat - 73129
$20.72$18.70 -
9% offSeaward Marine Water Heater - 6 Gal Front Heat Exchange
$792.01 - $983.27$712.88 - $885.01 -
9% offSeaward Marine Water Heater - 6 Gal Rear Heat Exchange
$866.47 - $980.35$779.89 - $882.38 -
9% offSeaward Marine Water Heater - 11 Gal Front Heat Exchange
$903.03 - $1,142.47$812.80 - $1,028.30 -
9% offSeaward Marine Water Heater - 11 Gal Rear Heat Exchange
$889.89 - $1,098.67$800.98 - $988.88 -
9% offRaritan Water Heater Thermostat - WH16
$108.62$97.82 -
9% offRaritan 1700 Series Marine Water Heater Front Heat Exchanger
$1,898.76 - $2,214.24$1,708.96 - $1,992.91 -
9% offRaritan Bolt-On Replacement Heating Element
$53.14 - $57.52$47.89 - $51.83 -
9% offRaritan Screw-In Replacement Heating Element
$50.22 - $54.60$45.26 - $49.20 -
9% offRaritan 1700 Series Marine Water Heater
$1,510.37 - $1,929.54$1,359.41 - $1,736.68 -
9% offKuuma Pressure Relief Valve - 10473
$24.89$22.47 -
7% offKuuma Replacement Heater Element Gasket - 06822
$2.16$2.00 -
9% offKuuma Replacement Water Heater Thermostat - 11930
$51.68$46.57 -
9% offKuuma Thermo-O-Disc High Temp Limiter with Reset Button - 120V - 11926
$53.14$47.89 -
9% offKuuma Water Heater Element - 02152
$40.00$36.06 -
9% offKuuma High Temperature Limiter - 11920
$54.60$49.20 -
9% offKuuma High Temperature Limiter - 11921
$51.68$46.57 -
14% offKuuma Marine Water Heater - 6 gal - 11810
$723.42$615.02 -
14% offKuuma Marine Water Heater - 6 gal - 11811
$627.06$533.11 -
14% offKuuma Marine Water Heater - 11 Gal - 11841
$792.09$673.39 -
14% offKuuma Marine Water Heater - 11 Gal - 11840
$738.12$627.52 -
14% offKuuma Marine Water Heater - 11 Gal - 11842
$917.70$780.17 -
14% offKuuma Marine Water Heater - 20 Gal - 11870
$1,189.32$1,011.06 -
14% offKuuma Marine Water Heater - 5 Gal - 11800
$562.82$478.51 -
14% offKuuma Marine Water Heater - 6 Gal - 11812
$723.42$615.02 -
9% offKuuma Marine Water Heater Element - 02858
$56.06$50.52 -
9% offKuuma Nylon Drain Valve - 11523
$12.29$11.12 -
9% offIsotemp Basic 24L Marine Water Heater
$1,465.25 - $1,466.71$1,318.82 - $1,320.13 -
9% offIsotemp Basic 30L Marine Water Heater
$1,490.08 - $1,511.98$1,341.16 - $1,360.87 -
9% offIsotemp Replacement Water Heater Element
$92.56 - $104.24$83.37 - $93.88 -
9% offIsotemp Replacement Water Heating Element - SEE00016LA
$107.16$96.51