Intermatic 146MT573

A little tight to get old one off and the new one on but works well. Way better than buying the whole switch. Wish the switch never wore out. At least it’s cheap to buy.

This fit perfectly over the metal part in my bathroom after the other one broke. Now I can use the exhaust fan without all the trouble I had before.

Exact replacement

It's frustrating to have a timer switch die due to a plastic knob cracking. The price is borderline too high but these replacement knobs are a cost-effective alternative to replacing the whole switch. Be warned that they have an extremely tight fit when being inserted onto the shaft.

Bought this to replace a knob that broke... color matches fine. Fit was a bit tight. Worked well for one season on a timer to my whole house fan... and it broke tonight. I guess the material it's made out of is pretty brittle/cheap. WTHeck?!?!

The original cracked under the heavy hand of my wife. This was the correct color and size. We'll see how it holds up.

This is the exact color and size I needed for my heater in the bathroom. Great product and quick delivery! Ivory is not white in the electrical world. So happy to find this knob, will make heating the bathroom easier this Winter =)

The bad news about plastic knobs like this is that they get brittle with age and sometimes break. The good news is that an exact replacement is available and isn't even too expensive. (Another source had them cheaper, but shipping cost more than the knob, making it more expensive than getting two of them here.) The fit was tight on the shaft which, once it's on, is a good thing.