“I am looking for a replacement electric toothbrush head for Philips Sonicare electric toothbrush 4100 series model number HX3681/24. Will the above toothbrush heads work on my Philips Sonicare 4100 series model number HX3681/24?”

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• Hello! The Philips Sonicare C2 Plaque Control brush heads HX9023/65 are compatible with the Philips Sonicare 4100 Series Sonic electric toothbrush HX3681/24.

  Answered by Philips 3 months ago

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• Hello! The Philips Sonicare C2 Plaque Control brush heads HX9023/65 are compatible with the Philips Sonicare 4100 Series Sonic electric toothbrush HX3681/24.

  Answered by Answered by Philips 3 months ago

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