Amazon offers the Philips Sonicare E-Series Replacement Brush Head 2-Pack, model no. HX7022/66, for $11.24 with free shipping via the directions below. That's $3 under our October mention, the best now by $3, and the lowest total price we've seen. They feature angled necks and reminder bristles that fade when in need of replacement. To get this deal:
  1. View the Philips Sonicare E-Series Replacement Brush Head 2-Pack for $17.09
  2. clip the $5 off coupon on the product page
  3. order via Subscribe & Save for a final price of $11.24 with free shipping
Be sure to cancel Subscribe & Save after your order ships to avoid being billed for subsequent shipments.