Each product has a unique model number.A model number usually starts with letters followed by series of numbers, e.g. GC6440, 37PFL7403D/10 or SA1300/02.
There are a few different ways you can locate your model number:
Look on the box
Look inside the product
Look on the product
Look on the manual
Snap-on brush head
Easy brush head placement and handle cleaning
Angled, radial-trimmed bristles expand the area covered
The curved surface area created by angled, radial-trimmed bristles helps maintain contact with the surfaces of the teeth and gums as the brush head pivots, covering a larger surface area without increasing the size of the brush head.
Contoured bristles fit the natural shape of your teeth
These Philips Sonicare electric toothbrush bristles are trimmed in a contoured pattern to fit the natural shape of teeth. The peaks and valleys along the length of the brush head are ergonomically designed to follow teeth topography and fit between teeth so you're less likely to miss places when you brush.
Brush head design maximises sonic motion
Thoughtful design and precision engineering ensure that when these Philips Sonicare replacement brushes are combined with the sonic motion and flexible brushing modes, you get a thorough clean.
Reminder bristles ensure you are getting an effective clean
Reminder bristles let you know when to replace the brush head. After three months of normal use bristles exhibit fatigue, and brush heads are less effective. Replace your brush head every 3 months.