eufy Security Wearable Breast Pump Replacement Diaphragms 2-Pack for E10/E20/S1/S1 Pro — Food-Grade Silicone, Restores Suction

When the pumping seal weakens, a fresh diaphragm quickly brings your wearable eufy pump back to reliable suction. These two replacement diaphragms are molded from upgraded food-grade silicone that balances flexibility with durability so the pump maintains consistent negative pressure across settings. They’re shaped to fit the E10, E20, S1 and S1 Pro housings and are simple to remove, clean, and reinstall.

How will replacing the diaphragm affect pump performance?

Changing a worn diaphragm restores airtight sealing and consistent suction, which helps the pump operate as intended. Because these parts endure repeated flexing, performance can decline over time; new diaphragms return responsiveness across stimulation and expression modes.

• Reestablishes tight seal between motor chamber and collection cup
• Restores consistent suction levels across settings
• Reduces air leaks that cause irregular rhythms or weaker cycles

Are these replacement diaphragms safe and easy to clean?

The diaphragms are produced from food-grade silicone suitable for contact with pump air paths and are built to withstand routine cleaning. Their smooth surface discourages residue buildup and can be rinsed, wiped, or sanitized according to manufacturer cleaning guidance.

• Made from food-grade silicone for safe contact with pump components
• Smooth finish simplifies rinsing and wiping
• Compatible with common decontamination practices recommended by the pump maker

How long should I expect each diaphragm to last?

Longevity depends on frequency and care, but typical lifespan falls between about one and three months under normal use. Replace the diaphragm sooner if you notice diminished suction, irregular pumping rhythm, or visible wear.

• Typical service life: approximately 1–3 months
• Replace earlier with frequent use or visible wear
• Pack includes two diaphragms to allow timely replacement

Will these diaphragms fit my eufy pump model?

This 2-pack is specifically sized for eufy Security wearable breast pump models E10, E20, S1, and S1 Pro. They are formed to align with the pump’s diaphragm seat and latch into place without adapters.

• Direct compatibility with E10, E20, S1, and S1 Pro
• No additional fittings required for installation
• Designed to match original part geometry for secure fit

Who is this for: Mothers using eufy wearable pumps who need a reliable, easy-to-install replacement part to preserve suction performance. This two-piece diaphragm kit suits users who pump regularly and want a quick maintenance solution to maintain consistent pumping rhythms and efficiency.

Product notes: Made from food-grade silicone, easy to clean, covered by a 90-day limited manufacturer's warranty, and intended as a consumable with a variable lifespan depending on usage.