The Momcozy Wellness 1 takes the Momcozy Wellness 1 duckbill valves (2-pack) (part AS424-NA71000N10101-A) as its valve; Australian sellers list it from A$10.50 each as of 1 November 2026. Fitment confirmed against the manufacturer's compatibility list.

Your breast pump
Momcozy Wellness 1
Breast pump
Confirmed against Momcozy's listConfirmed against Momcozy's own compatibility list
Not yours? Change
Takes the AS424-NA71000N10101-A valve
Wellness 1 duckbill valves (2-pack) · check the code on your old part before ordering.

Your breast pump
Breast pump
Confirmed against Momcozy's listConfirmed against Momcozy's own compatibility list

Takes the AS424-NA71000N10101-A
Valve · check the code on your old part.
Other Momcozy breast pumps and their valves, membranes and tubing
The AS424-NA71000N10101-A fits the Wellness 1 only. These Momcozy models take a different valve:
GenuineGenuine Momcozy
$10.50 each
2-pack $20.99
Momcozy Australia · 1 NovLowest genuine · Momcozy Australia · checked 1 Nov
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by Momcozy. Compatible: another brand.Genuine is made by Momcozy. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest price · $10.50 each · 2-pack $20.99
Momcozy Australia. Every seller we track is listed below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
This breast pump also takes a silicone diaphragm
- Momcozy Wellness 1 diaphragms (2-pack)Open Momcozy Australia$11.00 each · 2-pack $21.99
Separate from the valve.
Compare 1 seller
AUD, before delivery. Each price shows when it was checked.
Opens Momcozy Australia in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Replace it every 1 to 3 months, Momcozy says for silicone parts; sooner if it is worn or suction drops.
After replacing: No reset: the pump has no reminder for this part, so set your own.
How to change the valve in your Momcozy Wellness 1
Watch the guide or follow the steps.
No clear video for this part yet. The steps cover it.
- 1Wash your hands, take the pump off and separate the milk collector, flange and silicone parts.
- 2Remove the old duckbill valve and check the other silicone parts for cracks, tears or stretching.
- 3Before first use, wash the new duckbill valve and boil it for 5 to 10 minutes, then let it air dry.
- 4Fit the new duckbill valve in the same place as the old one, so it sits snugly and lies flat.
- 5Reassemble the pump and check for leaks or low suction before pumping.
Every number this part goes by
- Retail name:
- AS424
- Retail name:
- AS424-NA71000N10101-A
- Retail name:
- Momcozy W1 duckbill valve
Sellers list any of these; they are the same part.
About your Momcozy Wellness 1

Momcozy breast pump — Wellness. Its valve is the Wellness 1 duckbill valves (2-pack), part AS424-NA71000N10101-A.
Also in this breast pump: Momcozy Wellness 1 diaphragms (2-pack).
Where the model number is: The model name is printed on the motor unit or its base, and on the box. Wearable pumps also show it in the maker's app.
Fits this Momcozy model
Momcozy1 model
Common questions
- Which valve fits the Momcozy Wellness 1?
- The Momcozy Wellness 1 takes the Momcozy Wellness 1 duckbill valves (2-pack) (part AS424-NA71000N10101-A).
- Where can I buy the AS424-NA71000N10101-A in Australia?
- We track 1 Australian seller for the AS424-NA71000N10101-A; the lowest listed price when we last checked was A$10.50 at Momcozy Australia. Prices are re-checked daily and dated on this page.
- How do I fit the AS424-NA71000N10101-A in a Momcozy Wellness 1?
- No tools, a few minutes: 5 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- A stretched or torn valve or membrane lets the suction drop, so each session takes longer.
- Is there anything to reset afterwards?
- No reset: the pump has no reminder for this part, so set your own.
Something looks wrong with the Wellness 1 match? . Reports go to a person, not a bot.