Suitable for all Philips Sonicare sonic toothbrushes with ribbing on the upper metal pin (see example picture in the picture gallery), for example:

• DiamondClean (Smart) 9000, 9400, HX9322, HX9331, HX9332, HX9334, HX9336, HX9340, HX9342, HX9350, HX9351, HX9352, HX9359, HX9361, HX9362, HX9371, HX9372, HX9381, HX9382, HX9392, HX9901, HX9903, HX9911, HX9912, HX9914, HX9917, HX9924
• DailyClean 3100, HX3671, HX3673, HX3675, HX6221
• ExpertClean 7300, 7500, HX9601, HX9611, HX9691
• EasyClean HX6510, HX6511, HX6512, HX6530, HX6552, HX6581, HX6582
• FlexCare (+) Platinium HX6921, HX6930, HX6950, HX6972, HX6973, HX6992, HX6995, HX9140, HX9141, HX9142, HX9170, HX9171, HX9172, HX9182, HX6970, HX6934, HX6902, HX6903, HX6910, HX6912, HX6920, HX6932, HX6942, HX6962, HX6982, HX6985, HX9110, HX9111, HX9112, HX6911, HX6952
• HealthyWhite (+) HX8923, HX8911, HX8918, HX6710, HX6711, HX6712, HX6721, HX6722, HX6730, HX6731, HX6732, HX6733, HX6750, HX6761, HX6781, HX6782, HX6780
• ProtectiveClean 4300, 4500, 5100, 6100, HX6807, HX6830, HX6839, HX6850, HX6851, HX6857, HX6877
• Prestige 9900, HX9992
• PowerUp HX3631, HX3650, HX3631, HX3100, HX3110, HX3120, HX3130
• 2 Series HX6220, HX6231, HX6201, HX6211, HX6212, HX6221, HX6250, HX6252, HX6253
• Further HX6631, HX6210, HX3210, HX6610, HX6760, HX6411, HX6431
• And many more: Feel free to also use the "Customer questions and answers" function by stating your HX model number (located on the bottom of your Sonicare handpiece).