IVARONAL 4PC Flange Insert 18mm – Fits Momcozy, Eufy, Elvie, Medela & More

Overview

IVARONAL’s 4PC Flange Insert in 18mm is designed to slot into a wide family of breast pumps that use a 24mm flange. Crafted from soft, food-grade silicone, these inserts offer a skin-friendly option that can adapt as your breastfeeding needs evolve. The set focuses on reliable fit, easy replacement, and comfortable use, without promising guaranteed results.

Why this set stands out

The inserts are designed to mirror the function of original parts, providing a snug seal and consistent feel across sessions. They’re compatible with popular models from Momcozy (M5/M6/M9/S12 Pro and V1 Pro), as well as Eufy, Elvie, Medela, Spectra, Lansinoh, NCVI, and TSRETE models that use a 24mm flange or shield. In short, you can swap parts with confidence across multiple brands while keeping your pumping routine smooth.

• Designed to fit a broad range of pumps with a 24mm flange for fewer adapter needs.
• Offers a snug, secure feel that can support steadier pumping sessions.

Beyond compatibility, IVARONAL emphasizes a familiar, comfortable experience. The 18mm insert in this set is part of a broader line that covers ten sizes, from 13mm to 22mm, so you can explore the best fit as your needs shift over time.

Size range and practical fit

Although this listing centers on the 18mm size, the range from 13 to 22mm gives you options to customize fit for different phases of your breastfeeding journey. The mid-range 18mm size is useful for many users who seek a balanced seal and comfortable wear during longer sessions.

• 10 size options help you tailor fit for changing needs.
• Choosing the right size may support a comfortable seal and reduce pumping fatigue.

Material-wise, you get a durable, soft silicone that is BPA-free and odorless. The tactile feel is gentle against the skin, with a design that aims to minimize slip when handling and reduce irritation during repeated use.

Care, cleaning, and best-use tips

• Rinse after each use, wash with warm soapy water, and avoid aggressive brushes.
• For sanitizing, boil or steam at up to 100°C (212°F) for 5–10 minutes.

Real-life note: keep inserts clean and dry between pumping sessions, and replace worn parts as needed. While these inserts are built to work with a variety of pumps, individual results can vary with your pumping rhythm and comfort preferences.

Real-life sensory notes

The silicone feels soft and cushioned, with a matte texture that helps minimize slipping during handling. Many users appreciate the light, skin-friendly touch that complements a steady, comfortable pumping routine.