These Osctor Replacement Toothbrush Heads Compatible with The Following Sonicare Snap-on Electric Toothbrush handles:
Compatible with DiamondClean / Diamond Smart:
HX9312 HX9322 HX9331 HX9332 HX9340 HX9342 HX9350 HX9351 HX9352 HX9359 HX9361 HX9362 HX9370 HX9371 HX9372 HX9381 HX9382 HX9392 HX9393 HX9500 HX9610 HX939p HX9903
Compatible with ProtectiveClean:
HX4100 HX4300 HX5100 HX6100 HX6150 HX6160 HX6160d HX642a HX642c HX6421 HX6451 HX6800 HX6801 HX6802 HX6803 HX6805 HX6806 HX6808 HX6809 HX681a HX681j HX681u HX6810 HX6812 HX6815 HX6817
Compatible with FlexCare+ / FlexCare Platinum:
HX6160 HX6901 HX6902 HX6910 HX6911 HX6920 HX6921 HX6922 HX6930 HX6932 HX6950 HX6960 HX6963 HX6964 HX6970 HX6972 HX6973 HX6980 HX6992 HX6995 HX9101 HX9111 HX9112
Compatible with HealthyWhite / HealthyWhite+:
HX6314 HX6710 HX6711 HX6720 HX6721 HX6722 HX6730 HX6731 HX6732 HX6733 HX6750 HX6760 HX6761 HX6780 HX6781 HX6782 HX8903 HX8910 HX8911 HX8918 HX8923 HX8962 HX8982
Compatible with 2 Series Plaque Control:
HX6208 HX6210 HX6211 HX6213 HX6215 HX6216 HX6220 HX6225 HX6229 HX6231 HX6234 HX6235 HX6240 HX6247 HX6250 HX6263 HX6274 HX6275 HX9023 HX9034
Compatible with EasyClean:
HX6510 HX6511 HX6512 HX6520 HX6530 HX6535 HX6551 HX6552 HX6581 HX6582
Compatible with ExpertClean:
HX9603 HX9604 HX9609 HX9610 HX9616 HX9617 HX9630 HX9649 HX9684
Compatible with PowerUp:
HX3100 HX3110 HX3120 HX3130 HX3300 HX3631 HX3650 HX3220b
Compatible with DailyClean:
HX3211 HX3217 HX3404 HX3411 HX3702 HX3724
If you still not sure whether these replacement heads fit your toothbrush, Please feel free to use Amazon's Q&A or Contacet us directly
Disclaimer: These toothbrush heads are manufactured independently by Osctor