Fingerhut - Waterpik Sonic-Fusion Replacement Flossing Brush Head 2-Pack
Amazon.com : Replacement Flossing Toothbrush Heads with Covers for Water pik Sonic Fusion SF01/SF02 and Sonic Fusion 2.0 SF03/SF04,6 Count (Black-Blue) : Health & Household
Amazon.com : Waterpik Compact Replacement Brush Heads for Sonic-Fusion Flossing Toothbrush SFRB-2EW, 2 Count White : Health & Household