Breast Pump Parts – 24mm/27mm Flange, Duckbill Valves S32/S39

Complete Replacement Parts Kit for S32/S39 Wearable Breast Pumps

Keep your breastfeeding routine running smoothly with this full replacement parts set, designed specifically for S32 and S39 wearable electric breast pumps. Whether your current parts are worn out or you simply want a backup set on hand, this kit includes everything you need for efficient, hygienic milk expression — at home, at the office, or on the go.

Made from food-grade, BPA-free silicone that is soft, durable, and nitrosamine-free, these parts are gentle against sensitive skin and easy to disassemble and clean after every use.

Made in Mainland China.

Why Breastfeeding Moms Love This Kit

• ✅ Perfect Compatibility: Engineered to fit S32/S39 wearable electric breast pump models for a secure, leak-free seal.
• ✅ Two Flange Sizes: Choose from 24mm or 27mm flanges to match your comfort and anatomy for maximum milk output.
• ✅ High-Quality Silicone: Soft, flexible, and long-lasting — safe for both mom and baby. Nitrosamine-free and free from high-concern chemicals.
• ✅ Easy to Clean: Smooth surfaces and simple disassembly make sterilizing quick and effortless.
• ✅ Includes Milk Catcher: The included breast milk collector helps capture every precious drop.
• ✅ Versatile Use: Compact and travel-friendly — perfect for busy moms wherever the day takes them.

Specifications

• Material: Food-grade silicone (Nitrosamine Free)
• Flange Size: 24mm or 27mm (optional)
• Membrane Size: Approx. 4.6 × 4 cm / 1.81 × 1.57 in
• Duckbill Valve Size: Approx. 1.1 × 2.6 cm / 0.43 × 1.02 in
• Compatible Models: S32 / S39 Wearable Electric Breast Pumps
• Age Range: Newborn to 6 months

What's in the Box?

• 1 × Breast Milk Collector
• 1 × Silicone Membrane
• 1 × Duckbill Valve
• 1 × Flange (24mm or 27mm — your choice)

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

Support Your Breastfeeding Journey

The CDC and leading health organizations strongly support breastfeeding for infant health and nutrition. Having reliable, clean pump accessories is essential to maintaining a consistent pumping routine. Learn more about breastfeeding support and best practices at CDC Breastfeeding.

You May Also Like

• 1.3L Cool Mist Humidifier with LED Night Light & Dual Spray — great for creating a comfortable nursing environment
• Lip Sleeping Mask – Intense Hydration with Vitamin C — a self-care essential for new moms

Frequently Asked Questions

Q: Are these breast pump replacement parts safe for my baby?

A: Yes! These parts are made from food-grade silicone that is nitrosamine-free and free from harmful chemicals, making them completely safe for contact with breast milk that will be fed to your baby.

Q: Which breast pump models are compatible with these replacement parts?

A: These replacement parts are specifically designed to fit the S32 and S39 wearable electric breast pump models. Please verify your pump model before purchasing to ensure compatibility.

Q: How do I clean and sterilize the silicone parts?

A: The silicone components are easy to disassemble and can be rinsed with warm soapy water or placed in a steam sterilizer or boiling water for thorough sterilization. Allow all parts to air-dry completely before reassembling.

Q: What is the difference between the 24mm and 27mm flange sizes?

A: The flange size refers to the diameter of the breast shield opening. Choosing the right flange size is important for comfort and milk output — 24mm is typically suited for smaller nipple diameters, while 27mm accommodates larger ones. Consult a lactation consultant if you're unsure which size is right for you.