21mm Flange Inserts for Compatible Breast Pumps

A No-Nonsense Breakdown Of Features

Compatibility

The Flange Inserts are versatile accessories compatible with most 24mm Shields/Flanges, including Momcozy S9, S9 Pro, S10, S12, S12 Pro, TSRETE, Medela, Spectra, Opnmina, Elvie, Willow, Bellaaby, Motif Luna, Ameda, MOMMED, MYA, Ainsir, Phanpy, Lulia, NanaLazy, Luxlady, kidzio, eulumap, Teexin, Fisroa, KISSBOBO, Goldeep, BIOBOO, Mumeasy, Nanawawa, TOVVILD. Not compatible with 27mm shields.

Safety

Our Flange Sizing Kit is crafted from clear, food-grade silicone material, ensuring both safety and peace of mind. The product is BPA-free, and you can easily sanitize the inserts with water steam, boiling water, or microwave steam bags. After each use, remember to clean the replacement pump parts thoroughly with warm, soapy water. Replace the parts if they become deformed or discolored after extended use.

Comfort

Our Flange Insert is designed from a soft, comfortable material that provides a snug fit, enhancing both comfort and efficient pumping. This design helps prevent nipple damage or irritation.

Replacement

Available in various sizes—13/15/17/19/21—select the appropriate size to ensure smooth breast milk drainage. Some mothers may experience nipple swelling during pumping, so it's crucial to monitor nipple appearance. We recommend replacing the breast pump flange insert every 1 to 2 months.

Safety Guarantee

Products have been rigorously tested. If you receive the wrong size, our dedicated customer service team is available to provide support and ensure any installation or usage issues are resolved promptly.