Cordless Water Flosser and Sonic Toothbrush Set 60% Off with Coupon Code! Posted on November 21, 2023 | by admin Amazon has this Cordless Water Flosser and Sonic Toothbrush Set 60% off when using Coupon Code PC2UUSWK + 50% Off Coupon until 11/27/2023 11:59PM PDT or while supplies last.