Flange Insert 21mm, Compatible with S9/S12/S9Pro/S12Pro Wearable Breast Pump Parts Replace, Pump Shield/Flange Insert to Reduce 24mm Down to 21mm

First and foremost, I must commend you on the exceptional quality and functionality of both the silicone duckbill valves and diaphragms. They are impeccably crafted, and the silicone material feels sturdy and safe for use with my breast pump. I have found them to be highly effective in preventing milk backflow and ensuring a seamless and comfortable pumping experience.Additionally, I greatly appreciate the convenience of having a pack of silicone duckbill valves and diaphragms at my disposal. It provides me with peace of mind knowing that I have spare parts readily available, especially during busy days when time is limited. The inclusion of four silicone diaphragms is particularly valuable, as it ensures that I always have backups on hand when needed.Furthermore, I would like to commend your company for its exceptional customer service. From the moment I placed my order to the timely delivery of the products, the entire experience was smooth and hassle-free. Your team's dedication to customer satisfaction is truly commendable, and it has left a lasting impression on me.In conclusion, I couldn't be more satisfied with your 5 Pack Silicone Duckbill Valve and 4 Pack Silicone Diaphragm. They have exceeded my expectations in terms of quality, functionality, and convenience, and I would not hesitate to recommend them to other breastfeeding mothers or anyone in need of reliable breast pump accessories.

works with the momcozy s9. thought these were great

I replace my pump parts every couple of months in three different pumps- these parts fit and function just as well as the originals from Momcozy.

Silicone Duckbill Valve and Silicone Diaphragm were perfect for the momcozy s9! I've bought two packs so farad will continue to purchase throughout my breastfeeding journey!

Excelente

Works great with my Legendairy Milk Imani wearable pump

They fit my pumps, materials feels different but very durable

Works as described and I like these better than the ones my Spectra Gold came with. It doesn’t matter but the clear just looks nicer! Anything to make your pumping journey more tolerable is worth it in my opinion.