EBayTommee Tippee Perfect Prep Machine Replacement Filter Key Features filter compatible with Perfect Prep Machines Removes impurities, contaminants and bacteria from water Lasts up to 3 months with daily use 150 litre capacity (based on 6 x 260ml bottles per day) Prime in cold water for at least 5 minutes before first use to remove air bubbles and any loose particles, and to ensure complete filtration Contents: 1x Perfect Prep Machine Replacement Filter Top Tip! Please read the user instructions to ensure your Filter works to the optimum standard. Product details The Perfect Prep Machine Replacement Filter is designed for the Perfect Prep Machine or Perfect Prep Machine Day & Night (sold separately). This anti-bacterial filter system removes impurities and contaminants in the water for safe and hygienic baby bottle preparation. Perfect Prep Machine Filter Perfect Prep Machine Filters are recommended to be replaced every three months (based on preparation of 6 x 260ml bottles per day). A light on your Prep Machine shows when the filter is nearing the end of its life, and flashes when the filter needs immediate replacement.