2-Pack Waterpik Genuine Compact Replacement Brush Heads $14 at Amazon $14 $25 Amazon has the 2-Pack Waterpik Genuine Compact Replacement Brush Heads on sale for $20 - $5 off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $14 with free shipping on $35+ or with Prime. Compatible with all Waterpik Sonic-Fusion and Sonic-Fusion Professional Flossing Toothbrush models. $14 retail: $25 Posted by Faraday04/07/2026 at 08:22 AM PT