Tommee Tippee Perfect Prep Replacement Filters contains 2 anti-bacterial filters that are designed for use with water straight from the tap, for a safe, clean bottle every time. Tommee Tippee Perfect Prep Replacement Filters contains a unique filtration membrane, the anti-bacterial filter removes bacteria and other contaminants that can be found in water, ensuring your water is clean and safe to make a bottle feed, just like boiled water from your kettle. Each filter lasts up to 3 months - Tommee Tippee only recommend you use Tommee Tippee filters with the Perfect Prep machine. Your Perfect Prep machine will notify you when the filter is due to be replaced. Based on 6 x 260ml feeds per day Tommee Tippee Perfect Prep Replacement Filters are designed for use with water straight from the tap, so there is no need to pre-boil the water using a kettle or use bottled water. This filter features a unique filtration membrane which removes bacteria and other contaminants that can be found in water. This ensures that your water is clean and safe to make a bottle feed. Key features of Tommee Tippee Perfect Prep Replacement Filters: Compatible with the original Tommee Tippee Perfect Prep machine and the Tommee Tippee Perfect Prep Day and Night machine Anti-Bacterial filter allows you to use water straight from the tap and ensures that the water is clean and safe to make a bottle feed Inside each Perfect Prep Filter there is a unique filtration membrane which removes bacteria and other contaminants that can be found in water The filters have been s ised and are certified to food grade. In order for the filters to remain s e they should not be opened until ready to be used in the machine Long-Lasting: Each filter lasts up to 3 months. Your Perfect Prep machine will notify you when the filter is due to be replacedx 2 Filters Do these filters fit any Tommee Tippee Perfect Prep machines? The Tommee Tippee filters are compatible with all Perfect Prep Machines. Can I use other branded filters in my Tommee Tippee Perfect Prep machine? It is important to ensure that you are buying and using the correct Tommee Tippee prep machine to use with this anti-bacterial f