Right now on Amazon you can score this 4 Pack of WYAO Premium Standard Replacement Toothbrush Heads for Philips Sonicare Brush Handles for only $6.99. That’s like paying just $1.75 per replacement head!
This pack of four replacement heads should last you for one year when you change the head as recommended every three months. The fading bristles on the brush notify you when it’s time for a replacement head. Be sure to check the compatibility list to make sure these work for your Sonicare Toothbrush model.