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The RHEEM sp21275 is a 3000-watt immersion heating element designed for residential water heaters. It serves as the primary heat source in electric storage tank water heaters, converting electrical energy into heat that warms the stored water supply. Licensed plumbers and water heater service technicians install this element as a direct replacement when the existing element fails, loses efficiency, or tests open on a continuity check. At 3000 watts, this element is a common rating for lower-element positions in standard residential electric water heater tanks.
This element is suited for residential electric storage water heater applications. It is typically installed in the lower element port of a tank-style electric water heater, where it handles the primary heating load during recovery cycles. Service technicians encounter this type of element frequently in standard single-family residential installations. The inline universal style allows for straightforward fitment in common tank configurations.
Designed as an OEM-style replacement element for RHEEM residential electric storage tank water heaters requiring a 3000-watt inline universal element.
Installation should be performed by a licensed plumber or qualified water heater technician. Before replacing the element, shut off the electrical supply at the breaker and close the cold water supply valve, then drain the tank to below the element port before removal. Use a socket-style element wrench to remove and install the element, and inspect the gasket seat for debris or corrosion before seating the new element. Follow all applicable local plumbing and electrical codes during installation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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