MilkFlow Pump Parts 4PCS Replacement Kit for Spectra S1/S2/S9 Plus & Synergy Gold – 21mm Flanges, Valves, Tubes & Bottles (Not Original Accessories)

MilkFlow Pump Parts 4PCS Replacement Kit for Spectra

Designed for families who rely on Spectra pumps, the MilkFlow 4PCS Replacement Kit offers a complete, ready-to-use refresh for your setup. While these are not original accessories, they’re built to fit Spectra S1, S2, 9 Plus and Synergy Gold pumps, delivering dependable performance when you need it most. The kit blends practical design with everyday usability, making it a versatile option for busy moms and caregivers.

What’s included

Inside the pack you’ll find a full replacement lineup that keeps your routine moving. The kit contains four 21mm flanges, four duckbill valves, four backflow protectors, four tubes, and four bottles. Each part is chosen to support smooth milk flow, secure connections, and quick changes during late-night feeds or crowded days.

• Four 21mm flanges for a comfortable, replaceable fit
• Upgraded duckbill valves with pull tabs for fast, one-handed changes
• Backflow protectors to help minimize leakage and keep milk paths clean
• Four pumping tubes and four bottles for ready-to-use setups

Fit and flexibility

The kit offers a wide sizing range from 13mm to 32mm in increments, so you can experiment to find a comfortable fit that matches your body and equipment. This variety supports longer pumping sessions, quicker on-the-go setups, and a more natural feel during use.

• Sizes from 13 to 32mm cover common fit preferences
• Designed to seal with Spectra wide-neck and MilkFlow bottles for a mess-free experience

Performance and compatibility

These parts are designed to pair with Spectra wide-neck bottles and MilkFlow bottles, helping form a secure seal that minimizes leakage and keeps milk on the intended path. The duckbill valves feature a small pull tab for easier replacements, and the kit is built to withstand frequent use.

Portability and quick-use tips

Lightweight and compact, these replacement parts fit easily into a diaper bag, office drawer, or car compartment. They’re ideal for on-the-go pumping, travel, or backup readiness, letting you maintain your rhythm even when plans shift.

• Travel-ready design for diaper bags, cars, or office desks
• One-handed changes and secure connections for busy days

Care and notes

As replacement parts, this MilkFlow kit is intended to complement your Spectra system, not replace original accessories. Check model compatibility and bottle type before use, and follow standard cleaning steps after each session to extend durability.

In short, MilkFlow focuses on practical, flexible parts that support your routine, offering versatility and ease rather than guaranteed results.