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The LEVITON C28-26115-00W is a white replacement knob designed for dimmer and fan controls that use a half moon stem. The round rotary design provides a secure fit and restores full control functionality to the switch without replacing the entire unit. Weighing approximately 0.02 pounds, this lightweight component is sold individually and is a straightforward service part for residential and light commercial control applications. Electricians and HVAC technicians use this knob to restore failed or damaged controls quickly during routine service calls.
This knob is suited for residential and light commercial installations where rotary dimmer or fan speed controls are in use. It is a direct service replacement intended for retrofit and repair scenarios rather than new construction. The half moon stem interface is a common configuration found across a range of wall-mounted rotary control units. Installations typically involve older or existing control assemblies where the knob has cracked, discolored, or become loose over time.
Designed as an OEM-style replacement knob for rotary dimmer and fan speed controls equipped with a half moon stem. Confirm stem type on the existing control before ordering.
A licensed electrician should perform or supervise replacement on any live control circuit. Power down the circuit at the breaker panel before removing the existing knob or accessing the control assembly. No special tools are required for knob replacement, but verify the half moon stem alignment before pressing the knob fully into place. Work must comply with applicable NEC requirements for the installation location.
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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