GOCROWEEN 20mm Flange Inserts – 4pcs for 24mm Shields (Medela/Spectra)

Overview

GOCROWEEN 20mm flange inserts are a soft, food grade silicone accessory designed to adapt 24mm shields for a closer, more customizable fit. Each pack includes four inserts that shrink the nipple tunnel from 24mm to 20mm, offering a more tailored feel during pumping. Note: not compatible with 27mm shields.

These inserts are crafted for everyday use and aim to align the tunnel size with your needs while remaining BPA-free and easy to clean. The result is a more natural pumping rhythm without changing your shield system.

What you get and who it fits

• Four 20mm inserts in a flexible, skin-friendly silicone
• Compatibility with Medela PersonalFit 24mm Shields and Spectra 24mm flanges
• Works with Momcozy S12 Pro, S9 Pro, S9, and S12 wearable cups
• Also suitable for many 24–25mm models from Freemie and MISSAA hands-free pumps

Compatibility at a glance

• Medela PersonalFit 24mm Shields
• Spectra 24mm flanges
• Momcozy S12 Pro / S9 Pro / S9 / S12 wearable cups
• Freemie 24–25mm models and MISSAA hands-free pumps

Care, replacement, and tips

• Replace every 1–2 months for best comfort and fit
• Clean with mild soap and warm water, rinse well, and air dry
• BPA-free, food-grade silicone for everyday use

Choosing the right size can influence comfort and pumping experience. Observe how your nipple looks during pumping and adjust as needed to maintain a comfortable seal and steady flow. These inserts offer a practical option to adapt existing 24mm systems to a 20mm feel.