Ameda Purely Yours Replacement Parts Kit with One-Hand Manual Breastpump BPA FREE - Large (30.5mm)/ Insert (28.5mm) Go to amazon.com Related posts How to buy the best ameda flange 28.5? FeatureEasy to use DescriptionPurely Yours Replacement Parts Kit with One-Hand Manual Breastpump BPA FREE - Large (30.5mm)/ Insert (28.5mm)