Ending today, Oralcareus via Amazon offers the Ofashu Replacement Toothbrush Head for Philips Sonicare E-Series HX7022 3-Pack for $13.95. Coupon code "QS8WZUZF" drops that to $9.49. Plus, Prime members receive free shipping. That's a buck under the best deal we could find for a similar 3-pack elsewhere. These screw-on heads come with hygienic caps and are compatible with a variety of Philips Sonicare toothbrush models. (Check the product page for a full list of compatible models.) Deal ends May 20.