



Price: $7.99 - $7.59
(as of Nov 17, 2025 04:41:55 UTC – Details)
From the brand

Compatible with MOMMED S18 S21 Wearable Breast Pump.
Compatibility
Compatible with MOMMED S18 S21 Wearable Breast Pump.
Importance of Flange size
the size of your flange is important for comfort and efficient pumping. Please choose the right size flange.
Safety
the wearable breast pump accessories passed the test requirement on BPA free.
Click to Access Pump Parts
Click to Access Pump Parts
Click to Access Flange Inserts
Product Dimensions : 5.12 x 4.72 x 2.76 inches; 0.88 ounces
Item model number : YF00012
Date First Available : March 8, 2023
Manufacturer : Gowing
ASIN : B0C4DZZPZK
Best Sellers Rank: #15,305 in Baby (See Top 100 in Baby) #228 in Electric Breast Pumps
Customer Reviews: 4.4 4.4 out of 5 stars 301 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); } }); });
Gowing Wearable Breast Pump Accessories, more fresh breast milk to baby, more sleeping time for mom.
Comfort & Skin friendly: these wearable breast pump parts are made of BPA free, 100% quality silicone which provides mom the maximum comfort breastfeeding experience.
Closed System, No Milk Backflow: the breast pump replacement parts are designed with dual channel anti-backflow, gas and milk separated completely, knocking over not pollute the motor, no milk spilling and waste.
Leakproof: anti-backflow design features on silicone diaphragm makes milk does not reflux, long use; anti-overflow design features on duckbill valve makes milk only goes up, clean and pollution-free.
Safety: this wearable breast pump cupset passed the test requirement on BPA free(Report number: CTB230320010CX) and US FDA(Report number: CTB230320009CX).
8 reviews for Wearable Breast Pump Accessories Replacement Parts Duckbill Valve Compatible with Mommed S18 S21, Lansinoh Discreet Duo Nuliie S32 Series Breast Pump
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$7.59

Natalie –
A must have for second time moms
Preparing for breastfeeding with a rambunctious toddler I knew I was going to need more help. I wanted to try out a hands free pump but didn’t want it to be my main pump through insurance. I hopped on Amazon to find a reasonably priced one and found this one. I couldn’t be happier with the purchase. The suction works well, it’s easy to use and clean and holds over 6 ounces on each side. Be careful with the suction, start off slow I made the mistake of putting it on too high. I have been thoroughly impressed and although I can’t compare it to the “fancier” versions I am so happy I have gotten the hang of hands free pumping and it’s an absolutely game changer especially for Moms of multiples who always have their hands full!
erin chilcoat –
Perfect fit
Perfect fit for my lansinoh duo discrete pump
SS –
Good quality
Fits my mom cozy s12 perfectly and good quality material. I recommend lubricating the flange with some coconut oil or nipple cream before use. It did rub against my nipple and cause some cracking because it’s brand new silicone and has a grip on it
Amazon Customer –
My pump is working like new again!
I was having trouble with my Lansinoh wearable discreet duo pumps, one was not suctioning on a side! I ordered these and they work like brand new again! They are exactly the same as what came with my pumps. I would definitely recommend if you feel like your pumps aren’t working like they should!
Bill Keller –
Horrible
Leaked and ruined my motor .
Amazon Customer –
Lansinoh compatible
Exactly what I needed for my Lansinoh wireless breast pump
Cici –
High-Quality and Essential for Pump Maintenance!
These replacement duckbill valves for wearable breast pumps are fantastic! They fit perfectly and have restored the suction power to my pump, making it feel like new. The material is durable, easy to clean, and lasts through multiple uses without losing its shape. Having spare parts is essential for busy moms, and these replacements are a great value for the quality. Highly recommend for anyone needing to refresh their pump’s performance!
MommaB_Adventure –
Great replacement
I was a little skeptical when I initially purchased these as they seemed a little smaller than the original and the material didn’t feel as durable but they fit great and have not leaked on me so far.