Breast Pump Parts Kit for S9P/S12P – Flange, Valve & Connector

Make every pumping session easier and more efficient with this complete breast pump replacement parts kit, designed specifically for S9 Professional and S12 Professional electric breast pumps. Whether you're at home, in the office, or on the go, this essential accessory set helps you maintain a hygienic, high-performing pump without interruption.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Why You'll Love This Replacement Kit

• Perfect Compatibility: Engineered exclusively for S9P and S12P breast pump models, ensuring a precise, secure fit every time.
• Upgraded Sealing Flange: Available in 24mm and 27mm sizes, the single sealed flange design significantly improves milk collection efficiency by creating a tighter, more comfortable seal.
• Latex-Free Silicone + PP Construction: Made from body-safe, BPA-free silicone and polypropylene — gentle on skin and free from harmful chemicals, so you can pump with confidence.
• Easy to Clean: Smooth surfaces and minimal crevices make these parts simple to rinse and sanitize between uses.
• Pump Anywhere: Compact and lightweight — ideal for busy moms at home, at the office, or traveling.
• Complete Set: Everything you need is included in one convenient package — no hunting for individual parts.

Kit Specifications

• Material: Silicone + PP (Polypropylene)
• Flange Sizes: 24mm or 27mm (select your preferred size)
• Color Options: Clear or Frosted
• Compatible Models: S9 Professional (S9P) / S12 Professional (S12P) Electric Breast Pumps
• Material Feature: Latex-Free
• Country of Origin: Made in China

Package Includes

• 1× Breast Milk Collector Cup
• 1× Duckbill Valve
• 1× Diaphragm
• 1× 3-Way Connector
• 1× Flange (24mm or 27mm)

Please Note: Allow 1–2cm variance due to manual measurement. Slight color differences may occur due to varying display settings.

Breastfeeding Support & Resources

For guidance on breastfeeding best practices and pump hygiene, visit the CDC Breastfeeding Resources page for expert-backed information on safe pumping and milk storage.

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Frequently Asked Questions

Q: Are these breast pump replacement parts compatible with the S9P and S12P models?

A: Yes! This kit is designed exclusively for the S9 Professional (S9P) and S12 Professional (S12P) electric breast pumps. The flange, duckbill valve, diaphragm, 3-way connector, and collector cup are all precision-made to fit these specific models for a reliable, leak-free seal.

Q: What flange size should I choose — 24mm or 27mm?

A: Flange size depends on the diameter of your nipple. Most lactation consultants recommend measuring your nipple (not areola) and selecting a flange that is 3–4mm larger than your nipple diameter for the most comfortable and efficient pumping experience. If you're between sizes, the 27mm option typically provides a more relaxed fit.

Q: Are these parts safe for use with breast milk?

A: Absolutely. These replacement parts are crafted from latex-free, food-grade silicone and polypropylene (PP) — both are free from BPA and other high-concern chemicals. They are safe for contact with breast milk and can be easily sterilized to maintain hygiene.

Q: How often should I replace these breast pump parts?

A: It is generally recommended to inspect and replace soft silicone parts (like the duckbill valve and diaphragm) every 1–3 months depending on usage frequency, as wear can reduce suction efficiency. Having a replacement kit on hand ensures your pump always performs at its best.