Amazon.com : Ultra Whitening Toothbrush Replacement Heads for Philips Sonicare, Compatible with Phillips Sonic Care E Series, Essence, Xtreme, Elite, Advance, Screw-on Electric Tooth Brush Heads Refills : Health & Household
Philips Sonicare HX6053 Sensitive Standard Brush Head (3 Pk) for HX6731/34 Model - Walmart.com