





Price: $7.99 - $6.71
(as of Nov 23, 2025 16:50:25 UTC – Details)
From the brand


IVARONAL focuses on maternal and infant products, providing comfortable, safe and easy-to-use products for mothers and babies.
S12 pro/S9 pro parts
Flange
S12 PRO Parts
S12 PRO Parts
Product Dimensions : 1 x 1 x 1 inches; 1.76 ounces
Item model number : LHUS-S12pro-YZGM-64
Date First Available : September 19, 2024
Manufacturer : IVARONAL
ASIN : B0DHGKSQKZ
Best Sellers Rank: #10,461 in Baby (See Top 100 in Baby) #150 in Electric Breast Pumps
Customer Reviews: 4.4 4.4 out of 5 stars 224 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
【Compatible Brest Pumps】:These diaphragm and duckbill valve breast replacement compatible with Momcozy S12 Pro/S9 Pro,Not Original Accessories,Made by IVARONAL
【No Gap, Non-Leaking】:The silicone diaphragm without gap on the top , while the duckbill valve design allows breast milk to flow in one direction, effectively preventing leaks and achieving optimal suction.
【Anti-backflow 】:The soft silicone shields lay smoothly on the breast to ensure maximum comfort, and the anti-backflow and anti-overflow design provides better milk flow.
【Comfort&Food Grade Silicone】: BPA-free made of food-grade silicone and plastic material,safe,soft and odorless.All these replacement parts for breast pump provide good suction power, prevent back flow of milk, keep your breast pump at the best performance level
【Easy cleaning】: Washing S12pro/S9pro pump parts after each use with warm soapy water and rinse well.Please use boiling water/steam, with a temperature of ≤100℃(212℉)for 5-10mins.
13 reviews for 6pcs Duckbill Valves and 4pcs Silicone Diaphragm Compatible with Momcozy S12 Pro/S9 Pro Wearable Breast Pump Accessories,Mom Cozy Breast Pump Replacement Accessories
Add a review
$6.71

Dialmarys Velez –
Great!
Very good!
Lexi K –
Great product for the price
GREAT on my spectra S1. Works well and fits snuggly. Have not had any issues with this brand. Have bought multiple times and will continue to do so.
Joell Harris –
Perfect replacement parts!
These replacements work well. They fit perfectly. They easily can be used as individual replacement sets or in a rotation for the pumps they fit. They were delivered quickly.
Amanda –
Fits my Spectra S2, and wonderful to have many sizes!
I’m so glad I found these inserts! I needed a different size for each side, so it was much easier to buy this package with many different sizes than to just order one size. This was a great value, and these inserts worked with my Spectra S2 and also Motif Luna pump. The inserts just go right inside the 24mm flange that comes with the pump. It was also helpful to have many different sizes to try, rather than relying on just a measurement, which made pumping so much more comfortable. They clean easily, and I ran them through my bottle sterilizer/dryer multiple times a day for many months. I highly recommend pumping mamas to get this kit or a similar one in order to make sure you have the correct flange size, as it is so important to keep pumping comfortable!
Megan D –
Awesome!
Can be difficult to put into flange but works great!
Sasha Beiersen –
Perfect fit
Fits my momcozy pro 12 perfectly
Taylor Young –
Not the best seal IMO
I thought i would give this off brand collector set a try since it was way cheaper than the momcozy one, but upon arrival I saw that the outside silicone flange does not seal to the cup very well. It was super easy to peal off all the way around, which is not the case with an original momcozy double lipped collector. I did not end up trying to pump with this collector, as I figured it would end up leaking. So I just returned it. I decided I’d rather pay the extra to know i wouldn’t have any leaking issues, and for a better quality item that seals much better.
ZfexAmazon Customer –
Great for the price
Great product for a friend!
puneet –
I am so grateful to the seller for having these parts. I had lost some of my momcozy pump parts, so i decided to buy the whole set. I find this one better than the one i had earlier. Using it everyday, no issues
Yanick fortier –
Fonctionne parfaitement avec le momcozy S12 pro. Je dirais même que je préfère ceux-ci aux originaux. C’est très pratique d’avoir deux ensemble complet pour faire le tire allaitement. Je recommande fortement.
Sarah –
Works with my mom cozy m9
Thaw –
Love it
Sarah-James –
Se brise facilement lors du nettoyage à manipuler avec soins.