KAIYIV 15mm Flanges for Spectra S1/S2/9 Plus/Synergy Gold — Not Original Spectra Flange, Wide-Neck Pump Replacement Parts (2 Pack)

Meet the KAIYIV 15mm flanges, designed to pair with Spectra wide-neck pumps for a smooth, comfortable pumping experience. This two-pack offers a practical replacement option that fits multiple Spectra models while prioritizing skin-friendly materials and a secure seal. The result is a calmer routine that respects your days, whether you’re at home, at work, or on the go.

Find Your Perfect Fit

Every mom is unique, so the kit provides 9 sizes from 13mm to 30mm. A better fit can mean reduced friction and a more relaxed pumping session, helping you feel more in control of your comfort and daily rhythm.

• 9 sizes to discover your best match
• Custom fit may reduce discomfort during longer sessions
• Designed for steady, peaceful pumping moments

Seamless Compatibility

These flanges are built to work with Spectra S1, S2, 9 Plus, and Synergy Gold wide-neck pumps. There are no extra parts needed—just a straightforward click-in fit so you can get started quickly.

Whether you’re new to pumping or balancing a busy schedule, setup should be simple and reliable.

Gentle on Skin, Easy on You

Made from BPA-free, food-grade plastic, the smooth surface feels gentle against the skin, reducing irritation during extended or nighttime pumping sessions. The design emphasizes quiet, comfortable use that fits into night shifts and office days alike.

Leak-Free Seal

Designed to connect securely with Spectra wide-neck bottles and KAIYIV bottles, the flange helps create a tight seal that minimizes leaks, so you can pump with confidence during late-night sessions or busy workdays.

Clean in Minutes

The simple, smooth inner walls rinse quickly, making post-pump cleanup faster and easier—one less detail to manage when your schedule is full.

Always Ready, Wherever You Are

Lightweight and compact, these flanges travel well. Keep a spare pair in your pump bag, at the office, or in the car so you’re prepared on your busiest days.

Two-Pack Convenience

This set includes two flanges from a third-party manufacturer—compatible and functional as a reliable spare or part of your regular routine.

• Spare pair for quick swaps
• Travel-ready option to stay prepared