Convert A-series Sonicare Toothbrushes to Use E-series Heads : 4 Steps - Instructables
e-Series Standard sonic toothbrush heads HX7023/64 | Sonicare
Amazon.com : BrightDeal Toothbrush Heads for Philips Sonicare Essence Elite Advance Xtreme CleanCare E-Series Electric Sonic Screw-on Brush Replacement HX7022/66 HX7023 HX7001 with Cap, 6 Pack : Health & Household
Replacement Toothbrush Heads Compatible with Philips Sonicare E Series Electric Brush Precision Clean Replacement Brush Heads Refills 4 Pack White 4 Count (Pack of 1)
e-Series Sonicare toothbrush head HX7006/12 | Sonicare