Sonifresh via Amazon offers its Sonifresh Replacement Toothbrush Head 8-Pack for $7.98 with free shipping, via the below directions. That's only $2 above our May mention of a 4-pack, $11 off list, and the lowest price we could find. They're compatible with a range of toothbrushes including Philips Sonicare FlexCare, EasyClean, HealthyWhite, and DiamondClean. To get this deal:
  1. View the Sonifresh Replacement Toothbrush Head 8-Pack for $18.99
  2. add it to your cart via Subscribe & Save
  3. apply coupon code "JS6T2JKC" for a final price of $7.98
Note: Remember to cancel your subscription after your order arrives to avoid being billed for subsequent shipments.