MilkFlow Replacement Pump Parts Kit for Spectra S1/S2/S9 Plus – 2-Pack 28mm Flanges & More

Everything you need in one MilkFlow Spectra replacement kit

For caregivers balancing feeds and schedules, MilkFlow offers a complete replacement kit designed to pair with Spectra S1, S2, S9 Plus, and Synergy Gold pumps. These parts are not original Spectra accessories, but they’re engineered to fit the same pumping ecosystem and support daily routines without fuss.

What’s included

• 2 Flanges 28mm
• 2 Duckbill Valves with easy pull tabs
• 2 Backflow Protectors
• 2 Tubes
• 2 Bottles

Durable, easy to use

Upgraded duckbills feature a small pull tab for smooth handling, even on busy days. The kit is built for frequent use and straightforward rinsing, with wear-resistant surfaces that stay dependable over time.

Find your ideal fit

MilkFlow offers a broad size range from 13mm to 32mm, including 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, and 32mm. A precise fit supports comfortable pumping and helps minimize leaks.

Reliable performance across bottles

Designed to pair with Spectra wide-neck bottles and MilkFlow bottles, these flanges aim to create a secure seal and reduce milk leakage. Use them at home, at work, or on the go to support a steady pumping routine.

Travel-ready and practical

Lightweight and space-saving, these replacement parts travel well in a diaper bag, tote, or car. Keep a ready-to-use kit wherever you pump, and switch without missing a feed.

Care and safety

• Food-grade material and BPA-free
• Dishwasher safe on the top rack
• Safe for boiling and steam cleaning

Note about care: Follow the manufacturer’s guidance for any accessories you use with your Spectra pump system, and replace worn parts as needed to maintain a smooth pumping routine.