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Physically they are interchangeable with C3 heads. But these don't have the electronics to tell you you are pressing too hard, etc.
Sorry, there was a problem. Please try again later.Hi! The Philips Sonicare C3 is also a brush head like the Philips Sonicare SimplyClean brush heads. If you're using a C3 brush head for your current toothbrush, yes, SimplyClean brush heads are compatible with your toothbrush.
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