Toothbrush Heads, 3pcs, Reduces Plaque
From Amazon
Waterpik Triple Sonic Replacement Brush Heads, Complete Care Replacement Tooth Brush Heads, STRB-3WB, 3 Count, Black
OnBuy
Waterpik Triple Sonic Tooth Brush Heads Replacement, Complete Care, STRB-3WW, 3 Count (Pack of 1), White