Compatibility guide
Replacement heads for the Philips Sonicare 2100 Series Electric Toothbrush - Sonic Toothbrush with 2 Intensity Levels, EasyStart Feature, SmarTimer, 14-Day Runtime, White, Model HX4021/01, [New]
These heads fit the Philips Sonicare 2100 Series Electric Toothbrush - Sonic Toothbrush with 2 Intensity Levels, EasyStart Feature, SmarTimer, 14-Day Runtime, White, Model HX4021/01, [New] handle. Official fits come from the brand. Verified alternatives are made by others and checked against the handle.
No verified heads are listed for this handle yet. Check the manufacturer's specifications, or try the brush head finder.
Good to know
Before you buy
Replace about every 3 months
Worn bristles clean less effectively and can irritate gums.
Match the head type
Heads differ by purpose, for example gentle, whitening or deep clean. Pick the one that suits your teeth and gums.
Compare pack sizes
Multi-packs usually cost less per head. Check the price per head, not just the pack price.
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