Markel Products Co. 63818002 Thermostat Knob Ivory 3310 SER

Markel Products Co. 63818002 Thermostat Knob Ivory 3310SER is a control interface for HVAC systems that enables one to regulate the temperature settings of compatible mechanical thermostats. It is made of ivory-finished molded material with clear indexing to fit on the control shaft of the thermostat and offers a tactile feel to the setpoint selection. This is installed by pressing on the shaft of the thermostat when it is being assembled or replaced and it aligns with printed temperature scales.