Today only, stock up on Oral-B compatible toothbrush heads when you buy 12 for $34 (a $120 value) through Moolala.com. With 3-packs of replacement heads running around $20, that's a savings of $46. This mega-pack of replacement heads are compatible with Oral-B Triumph, Professional Care, Vitality, and Pro-Health model brushes. They are not compatible with Vitality Sonic, Sonic Complete, Pulsonic or CrossAction Power model brushes. There is no limit on the number you can buy. Shipping is free and there is no sales tax.