MilkFlow 30mm Flange & Duckbill Valve — Spectra S1/S2/9+, 2-Pack Replacement Parts

MilkFlow 30mm Flange and Duckbill Valve Replacement Parts for Spectra Pumps

Designed with daily pumping in mind, the MilkFlow 30mm Flange and Duckbill Valve set provides a thoughtful alternative to original Spectra accessories. This 2-pack includes two breast shields (21mm) and two reinforced duckbill valves, plus flange inserts that accommodate up to 30mm for a customizable fit. The result is a practical, user-focused option for households using Spectra S1, S2, 9 Plus, and Synergy Gold pumps.

What’s included

• Contains 2 breast shields (21mm) and 2 duckbill valves for ready-to-use replacements
• Reinforced duckbill valves with an easy-grip base designed for daily pumping sessions
• Sizes available from 13mm to 30mm to help you tailor a comfortable seal
• 100% food-grade material, BPA-free for peace of mind
• Works with Spectra wide-neck bottles and most wide-mouth bottles
• Dishwasher safe (top rack), boiling safe, and steam safe for convenient cleaning

Fit, comfort, and care

With a focus on a smooth pumping experience, the set offers options that let you adjust the seal and airflow to suit your daily routine. The easy-grip duckbill valves are designed to feel solid in hand, while the shield sizes help align with a comfortable pumping feel across sessions.

Compatibility and safety notes

• Compatible with Spectra S1, S2, 9 Plus, and Synergy Gold pumps
• Works with Spectra wide-neck bottles and most wide-mouth bottles
• Made from 100% food-grade material and BPA-free
• Dishwasher safe (top rack), boiling safe, and steam safe for easy sanitizing

Note: This set is not original Spectra accessories.

Real-life use and benefits to consider

In everyday pumping, having a 2-pack of replacements can minimize downtime between sessions. The range of sizes (13–30mm) supports you as your comfort needs evolve, and the tougher duckbill valves with an easy-grip base aim to feel dependable during daily use. The compatibility with a wide range of Spectra bottles adds flexibility for households with multiple bottle styles, while top-rack dishwasher cleaning and heat-safe properties simplify post-pump sanitation. These aspects are designed to help you maintain a steady routine without demanding extra care or specialized tools.