MilkFlow 16mm Flange & Duckbill Valve – 2-Pack for Spectra S1/S2/9+ (Not Original)

MilkFlow 16mm Flange & Duckbill Valve 2-Pack for Spectra Pumps

Designed as a practical upgrade for daily pumping, this MilkFlow kit provides replacement parts that feel reliable in your hands and on your bottle. The set includes two 21mm breast shields and two reinforced duckbill valves, ready to pair with popular Spectra models S1, S2, 9 Plus, and Synergy Gold. Instead of a direct clone, think of it as an accessible option to refresh your pump components when wear shows up or you want consistent performance across sessions.

In use, the reinforced duckbill valves with an easy-grip base offer a tactile, secure feel when attaching and releasing. The 16mm flange size sits between standard options, giving a balanced option for many users seeking a comfortable fit that supports effective milk flow without excessive effort. The shields at 21mm are designed to sit softly against the breast, contributing to a smoother pumping experience during longer sessions or busy days when pauses are limited.

From a safety and materials perspective, the parts are described as 100% food-grade and BPA-free, aligning with common expectations for pump accessories. They’re compatible with Spectra wide-neck bottles and many wide-mouth bottles, enhancing versatility if your bottle collection includes a mix of sizes. Cleaning is straightforward: top-rack dishwasher safe and suitable for boiling or steam sterilization as part of regular sanitation routines.

Who might benefit from MilkFlow 2-Pack? It suits caregivers who rely on frequent pumping, travelers who need reliable on-the-go replacements, and anyone preparing a spare set to minimize downtime between sessions. While not guaranteed to solve every setup, many users report easier assembly, maintained suction quality, and less downtime when replacing aged parts.

In the box and practical tips

• Contains two 21mm breast shields and two reinforced duckbill valves
• Includes 16mm flange inserts for versatile fit
• Food-grade, BPA-free materials for peace of mind
• Works with Spectra wide-neck and most wide-mouth bottles
• Top-rack dishwasher safe; boiling and steam safe for sanitation

Care and maintenance

• Inspect seals for signs of wear and tear before each use
• Rinse and wash after pumping; air-dry completely
• Avoid abrasive cleaners that can degrade silicone and elastomer parts
• Store away from heat and direct sunlight to extend life