Amazon has Philips Sonicare HX7023/30 Eseries Standard Replacement Brush Heads, 3 Pack for $25.60 $16.11
Designed to work with Advance, Essence, Elite, CleanCare, and Xtreme, handles, these screw-on replacement brush heads feature an angled neck and contoured bristles to help you easily maneuver the brush and focus on hard-to-reach areas where plaque can hide. The blue reminder bristles fade to let you know when it's time for replacement. Replace your brush head every three months for best results. [ Shop Now ]
