LOTBILL Flange Inserts 13-21mm (10 pcs) for S12 Pro/S9 Pro, Medela, Spectra

Versatile sizing for comfortable, customizable pumping

The LOTBILL Flange Insert Kit blends comfort, compatibility, and ease of use. It includes five size inserts—13mm, 15mm, 17mm, 19mm, and 21mm—designed to fit a range of wearable breast pumps. When paired with a 24mm flange, the inserts help refine the fit for a more natural seal and softer surface contact, which many users find comfortable during longer pumping sessions.

Compatibility and sizing you can trust

The inserts are designed to work with most wearable pumps, including Momcozy S12 Pro/S9 Pro/S12/S9/S10, Medela, and Spectra brands. Not suitable for 27mm or 28mm shields. Your chosen size can adapt to changing needs during the breastfeeding journey.

Materials and skin-friendly design

Crafted from food-grade silicone, the inserts are BPA-free and feature a soft texture that rests gently against the skin. The close-to-skin fit aims to reduce foreign-body sensation while maintaining a stable seal, enabling a calm pumping experience. A well-fitting insert may reduce friction and the sensation of being squeezed inside the flange channel, supporting a more balanced pumping feel.

Rethink care: simple cleaning and long-lasting use

Keep your kit hygienic with straightforward cleaning routines. To sanitize, choose steam, boiling water, or microwave steam bags. After each session, wash with mild soap and rinse. A sponge cleaning brush helps reach tricky areas. For optimal performance, consider replacing pump accessories every two months.

Two practical lists for quick decisions

• Size options: 13mm, 15mm, 17mm, 19mm, 21mm provide a wide range to try without guessing.
• Key benefits: comfortable fit, soft skin contact, reusable and easy to clean, broad pump compatibility.

• Care steps: sterilize by steam, boil, or microwave steam bag; wash with mild soap; rinse well.
• Maintenance: include the sponge brush for cleaning; replace every 2 months for best performance.