MilkFlow 15mm Flange & Duckbill Valve 2-Pack for Spectra S1/S2/9+ Pumps

MilkFlow Replacement Parts for Spectra Pumps

Keep your Spectra S1, S2, 9 Plus, or Synergy Gold pumping routine smooth with MilkFlow’s 2-pack replacement set. This kit includes two 21mm breast shields and two reinforced duckbill valves, designed for daily use and long-lasting performance. Rather than a direct OEM part, these MilkFlow components aim to provide dependable, compatible replacements that fit many popular Spectra models and wide-mouth bottles.

Designed to cater to comfort and reliability, the set supports a range of flange sizes, helping you tailor the experience to your body and routine. The kit lists available sizes from 13mm up to 30mm, offering options that can contribute to a more comfortable pump session. While fit can vary by individual, the assortment encourages a better-matched setup for many users.

What’s included

• Two 21mm breast shields
• Two reinforced duckbill valves with an easy-grip base
• Compatibility with Spectra S1, S2, 9 Plus, and Synergy Gold pumps

Key features and compatibility

• Made from 100% food-grade material; BPA-free
• Works with Spectra wide-neck bottles and most wide-mouth bottles
• Reinforced duckbill valves designed for daily use and longer-lasting performance

Care and use

• Dishwasher safe (top rack); boiling safe; steam safe
• Easy to clean and sterilize, fitting into busy pumping schedules

Note: These are MilkFlow replacement parts and are not official Spectra accessories. Always verify compatibility with your specific model before use. When switching parts, monitor for a secure seal and proper flow during pumping sessions.