Back side design
2
Most do not need a grove in the middle that so you can compress the shaft to get the cap on
Was this Answer Helpful ?Hello: Unfortunately we do not have any pictures posted online of the back of the Rotary knobs. However, feel free to call in and speak to one of our product specialists at 800-523-9466. We are available 24/7 and will be happy to ensure you get the correct knob that you need for your dimmer.
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