Water Heater Parts
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Marathon Brass Drain Valve
$18.49 This full flow brass valve from Rheem allows you to fully drain your Marathon water heater in order to perform maintenance. -
Marathon Copper Upper Element 4500W
$44.99 The SP610160 is a 4500W replacement copper fused upper Marathon water heater element. -
Marathon High Temp Thermostat for Heavy Duty Tanks
From: $12.99These thermostats are replacements for Marathon heavy duty water heater tank upper and lower thermostats.
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Marathon Temperature and Pressure Valve
$23.42 This brass temperature and pressure valve is designed to relieve the water heater of stress when water temperatures or pressures are too high. -
Marathon Titanium Element 3800W
From: $61.99Titanium plated Marathon water heater elements provide the maximum protection from harsh water conditions.
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Marathon Titanium Element 4500W
$82.25These 4500W Marathon water heater elements can be used as replacements or upgrades.
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Marathon Top Union Connection Cold Seal Ring
$3.50 This seal ring part is a replacement cold seal for the top union connection on a Marathon water heater. -
Marathon Vacuum Relief Valve
From: $29.48 A vacuum valve must be installed on the cold water inlet in either a vertical or horizontal position to assure warranty coverage a Marathon water heater. -
Marathon Water Heater Standard Thermostat
From: $18.99These thermostats are replacements for standard Rheem water heaters Marathon models MR30-MR105.
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Rheem Leak Detection Sensor
$25.00Rheem's Leak Detection Sensor helps alerts you in cases of internal or external leaks to save you from water damage or pricey repairs!
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Rheem Seal Ring for Marathon Water Heater
$3.50 This Rheem part is a replacement hot seal for the top union connection on a Marathon water heater.