IVARONAL 4PC Flange Insert 16mm — Broad 24mm Pump Compatibility for Momcozy, Eufy, Elvie & More

Broad compatibility for everyday pumping

The IVARONAL 4PC Flange Insert in 16mm is designed to work with a wide range of breast pumps that use a 24mm flange or shield. It fits popular models such as Momcozy M5, M6, M9 and S12 Pro, and also adapts to many 24mm shield assemblies from Eufy, Elvie, Medela, Spectra, Lansinoh, NCVI and TSRETE. This broad compatibility means you can keep your favorite pump setup while swapping inserts as needed, without changing the whole kit.

What makes it a practical upgrade

While crafted to mirror the function of original parts, these inserts are designed for a snug fit that supports steady use. Replacing worn parts can help preserve your familiar pumping experience, providing dependable performance when you need it most.

• Broad compatibility with Momcozy and many 24mm shield pumps from major brands.
• Same-function replacement designed for a secure, comfortable seal.
• Ten sizes to choose from (13–22mm) to support evolving needs along the breastfeeding journey.
• Food-grade silicone material, BPA-free and odorless, skin-friendly for both mom and baby.
• Easy to clean and sanitize with simple care steps.

Real-life use scenarios

Morning routine at home: a 16mm insert provides a snug fit to reduce slipping and maintain a steady rhythm. On-the-go pumping: swap to a compatible shield to keep sessions comfortable during travel. Weekday return-to-work days: a reliable, quiet option that respects your space while you focus on your day.

Choosing the right size

The IVARONAL range encompasses ten sizes, including 16mm, to help you find a precise seal. Start with the 16mm in this pack and explore other sizes (13–22mm) if you notice gaps or pinching, ensuring a comfortable, secure feel without force.

Care and maintenance

• Rinse after each use with warm water.
• Wash with mild soap; avoid harsh scrubbing or brush bristles.
• Dry thoroughly and store in a clean place.
• Sanitize by boiling in water up to 100°C (212°F) for 5–10 minutes when needed.

These inserts are designed to support comfortable, efficient sessions while offering practical replacement parts for a broad set of pumps. They are a possible option to consider as part of your ongoing pumping routine.