The Momcozy M9 Silicone Valves are replacement duckbill valves made specifically for the Momcozy M9 wearable breast pump. These soft, flexible silicone valves are a milk-path wear part — the small piece that opens and closes as the pump works, helping it hold its vacuum. Keeping a fresh set on hand means you can refresh a worn valve during routine care and keep your pump running the way it should.
Duckbill valves take on a lot of work with every session, and over time the silicone naturally stretches or softens. Because they're designed to fit the M9 specifically, these replacements slot into your existing setup without guesswork, so you're not left hunting for a part that only fits physically but isn't matched to your pump.
How it Works
- Vacuum seal: The flexible duckbill opens and closes as the pump cycles, which helps the M9 maintain its suction and keep milk moving during expression.
- Wear component: As a soft silicone part, the valve gradually loses its shape and elasticity with regular use — swapping in a fresh one helps support consistent suction and ongoing pump performance.
How to Use
Inspect your wearable pump accessories regularly for stretching, fraying or silicone damage, ideally before suction performance is noticeably affected. Replace the valves as part of your routine maintenance. Under regular-use conditions, the recommended replacement schedule is approximately every three months.
Best For
The Momcozy M9 Silicone Valves are a good fit for parents who:
- Use a Momcozy M9 wearable breast pump and want the correct replacement valve
- Prefer to keep a spare set on hand for routine maintenance
- Have noticed weaker suction and suspect a worn valve rather than a motor fault
They won't be suitable if you use a different pump model, as they're designed specifically for the M9.
Care & Maintenance
Helps maintain efficient pumping performance
Soft, flexible silicone construction
Designed for regular wearable pump maintenance
Easy to replace during routine care
Supports ongoing wearable pump reliability
- 2x Silicone Duckbill Valve