Robertshaw
Robertshaw 40-158 Infinite Switch Knob Black
Black plastic infinite-switch knob for thermostat control
- TypeLearning Thermostats
- Direct temperature control via infinite switch
- Durable black plastic construction
- Robertshaw 40-158 model compatibility
- Ready for HVAC thermostat installation
Robertshaw 40-158 Infinite Switch Knob
This black plastic knob is designed for infinite switch controls on Robertshaw thermostats. It carries the model number 40-158 and functions as a direct replacement accessory. The component is supplied new and ready for installation on compatible heating or cooling equipment.
Suits technicians repairing Robertshaw infinite
Buyers who need a different shaft size, colour or material should look at other options. This part is specific to the 40-158 model and will not fit unrelated thermostat brands or switch types.
Highlights
- Direct temperature control via infinite switch
- Durable black plastic construction
- Robertshaw 40-158 model compatibility
- Ready for HVAC thermostat installation
Specifications
| Brand | ROBERTSHAW |
|---|---|
| Type | Learning Thermostats |
Questions about this item
Which Robertshaw infinite switch models accept the 40-158 knob?
The 40-158 knob is designed for Robertshaw infinite switches with a matching shaft; verify your switch model before ordering.
Will the black 40-158 knob fit older Robertshaw thermostats I already own?
It fits older Robertshaw units that use the same infinite-switch shaft pattern; check the shaft shape on your existing control.
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