NENESUPPLY 21mm Flange Inserts for 24mm Pumps – Elvie, Stride, Spectra, Willow Compatible (2pc)

Meet the Nenesupply 2nd Generation 21mm flange inserts — a 2-pack crafted to adapt 24mm flanges to a slimmer, more comfortable fit. Each insert is made from soft silicone and designed to work with most 24mm flanges from popular pumps, including Elvie, Elvie Stride, Spectra, Willow, Willow Go, Momcozy, Medela, and Motif Luna. By reducing the funnel from 24mm to 21mm, you gain a different contact surface that may suit longer pumping sessions or varied nipple shapes. This set is designed to complement existing pump parts, including Elvie accessories and Willow parts, so you can tailor fit without buying a whole new kit.

The inserts emphasize a gentle touch and practical versatility. The smooth angle and soft material aim to provide a more comfortable pumping experience, while the compatibility breadth gives you flexibility if you already own multiple pumps. These are not original Elvie parts, but they’re intended to work with a broad range of 24mm flange systems, helping you explore fit options with your current equipment.

Comfort, fit, and versatility

• Soft silicone with a smooth angle provides a gentler contact surface for longer sessions
• Reduces a 24mm flange to a 21mm opening, offering a different fit when needed
• Compatible with 24mm flanges from Elvie, Stride, Spectra, Willow, Momcozy, Medela, Motif Luna, and more

Ease of use, care, and safety

• Easy to install and remove — swap sizes quickly without tools
• Embedded sealing circles help maintain a complete seal during use
• Dishwasher safe on the top rack; BPA and DEHP free; compliant with EU and USA material standards

Note: These inserts are not original Elvie pump parts. They’re designed to work with a wide range of 24mm flange systems to support a flexible pumping setup. Available in 15, 17, 19, and 21mm options for tailored comfort across sessions.