Amazon.com has the Philips Sonicare ProResults Brush Heads for a good price.

Item has a rating of 4.5/5.0 from 225 reviews

Google Products Price : $26.98 ~ $30.98 Shipped

1. Amazon Price : $19.90
2. Choose between compact or standard
3. Choose to "Subscribe & Save" to get 15% off + free shipping
Final Price : $16.91 Shipped