Maymom Duckbill Valve — Compatible with Momcozy S9/S12, Spectra Caracup, TSRETE (4pc, White)

Overview

Meet Maymom’s duckbill valve set, crafted as a reliable replacement for popular wearable pumps. This 4-piece white valve pack is designed to work with Momcozy S9/S12, Spectra Caracup, FEISIKE Cup 2011 Version, and TSRETE pumps. While these are not original Momcozy parts and are not intended for Freemie open systems, they offer a practical, ready-to-use option when wear or performance changes.

Compatibility and fit at a glance

The duckbill valve features an internal 18.5 mm diameter, which suits many wearable pumps with silicone cups that use a linker around 19–20 mm. The silicone is BPA-free, built to handle daily use, and designed to reduce downtime when replacements are needed. This broad compatibility can help you maintain a smooth pumping routine on busy days.

• Compatible with Momcozy S9/S12 wearable pumps, Spectra Caracup, FEISIKE Cup 2011 Version, and TSRETE; not for Freemie open systems.
• Not original Momcozy parts; replacement valve to help maintain pumping performance.

Durability, safety, and care

Maymom backs this valve with a 3-month replacement warranty. Some batches may have a slightly smaller base linker, which can affect fit. If it doesn’t fit, contact the seller for a refund or guidance. The valve is made from BPA-free silicone and complies with EU and USA FDA standards for materials that contact food. Each valve can be cleaned with boiling water or steam between uses, supporting reuse with proper care.

• Made from BPA-free silicone and tested for quality and safety by independent labs.
• Retail-packaged and sealed by Maymom; suitable for cleaning via boiling water or steam.

Usage, tips, and practicality

Regular replacement of worn valves can help maintain suction and reduce the risk of milk backing up in tubing. If you notice signs of wear or reduced performance, swapping to a fresh valve may support a smoother pumping session. Keep a spare set on hand for travel or busy days, and note that if you’re seeking an Elvie Stride replacement, Maymom also offers a compatible option (ASIN B0BBVKM4X7).

What’s in the package

Each 4-piece set arrives in a compact, retail-ready package, designed for quick storage and easy access when you need a replacement.