FYI-For those that has a non-Pro series sonicare brush (like me)...
I searched and only noticed the 3 packs for pro series replacement heads, so
correct me if I am wrong. The 2-pack here is compatible with Sonicare
Advance, Elite & Essence Series handles.
Link: http://www.amazon.com/Philips-Sonicare-Hx7002-30-Replacement/dp
Be sure to select S&S on the right hand side to reduce the listing from $19.
97 to $17 with free shipping. You can cancel S&S anytime after it ships.