This item ships directly from the manufacturer.
Contiguous US Only – No PO Boxes.
Manufacturer Rating: Stock accuracy and delivery from this manufacturer is reliable. We will contact you if there are any issues with availability.
Knob & retainer 1100
Quantity In Pack
This part is also known as:
4117, APR4117, 01/04/4117
This part fits 3 models
Aprilaire: 1120 1130 1140
This part may fit other models. Please contact us if you require additional assistance.