Nenesupply 2nd Gen 17mm Flange Inserts — 6pc, 24mm to 17mm Compatible

Meet the Nenesupply 2nd Gen 17mm Flange Inserts

This 6-piece set is designed to adapt many 24mm pump flanges down to 17mm, offering a customizable fit across popular brands. While these inserts are not original Elvie parts, they’re built to work with Elvie accessories and Willow parts, among others, giving you flexible options for your pumping routine.

Designed for comfort and control

Each insert features a smooth angle and a soft material that helps create a comfortable transition from a larger flange to 17mm. The embedded sealing circles help maintain a complete seal, which some users find helps minimize suction issues during longer sessions. The result is a gentle, predictable feel as you begin pumping, without abrupt transitions.

• Six-piece set with 17mm size for flexible sizing
• Smooth angle and soft silicone for comfortable pumping
• Reduces 24mm flange to 17mm for a tailored fit
• Embedded sealing circles to help maintain a seal
• Easy to install and remove, with everyday-use practicality
• Dishwasher safe on the top rack; BPA and DEHP free
• Made by Nenesupply; compliant with EU and USA material regulations

Wide compatibility

These inserts are designed to work with 24mm flanges from a wide range of brands—Elvie, Elvie Stride, Spectra, Momcozy, Medela, Willow, Willow Go, Motif Luna—and are noted for their inclusive sizing. The 6-piece set can be used across brands and pump parts, offering a single solution for several devices in your kit.

• Compatible with Elvie, Stride, Spectra, Momcozy, Willow, Willow Go, Motif Luna
• Available in 15, 17, 19, 21mm to suit different pumping styles
• Made by Nenesupply; designed to complement existing pump parts

Care, safety, and care

Materials are BPA and DEHP free, and the inserts are top-rack dishwasher safe for easy cleaning. They comply with EU and USA regulations for materials that contact food, and are independently lab-tested for quality and safety.

What you get and how to use

Six 17mm inserts designed to convert 24mm flanges, with a design intent focused on comfort and reliability. For best results, push in gently, remove by pulling from the edges, and clean after use.