Compatible replacement for part numbers 146MT575A and 146MT494A — fits your existing timer controls without any modifications. Key benefits Restores full control: Replaces worn or broken knobs so your timer works as intended for bathroom heaters, fans, or lights. Direct fit and easy installation: 1 inch outer diameter and a 'D' shaped back hole measuring 316 provide a secure, nofuss connection to the timer shaft. Clean, coordinated look: Light almond finish updates the appearance of your control while remaining neutral with most bathroom fixtures. What makes this knob practical Function: Designed specifically for timer controls; restores tactile control and precise setting selection. Compatibility: Built to 146MT575A and 146MT494A models, ensuring correct fit and operation without adapter parts. Size and fit: 1 inch outer diameter for a comfortable grip; 'D' shaped back hole measuring 316 aligns directly with standard timer shafts for a stable fit. Typical applications a cracked or slippery knob on a bathroom heater timer to regain safe, reliable control. Swap a faded knob on a bathroom fan timer to match updated fixtures and improve usability. Keep as a maintenance spare for property managers or technicians who service multiple bathroom timer controls. Simple, reliable replacement that matches the original part numbers and restores function and appearance to your timer control.