D Series: D10, D12, D16, D17, D18, D19, D20, D29, D34, D36. Compatible With most Oral-B Braun round head electric toothbrush models, including 1 ×Toothbrush Charging Base. Professional Series: 500, 600, 1000, 2000, 2500, 3000, 4000, 5000.
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