--- product_id: 733412889 title: "Momcozy Flange Insert 21mm Compatible with Momcozy S9 Pro/S12 Pro/Medela/Spectra 24mm Shields/Flanges. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 4PCS (21mm)" brand: "momcozy" price: "AR$1716" currency: ARS in_stock: false reviews_count: 5 url: https://www.desertcart.com.ar/products/733412889-momcozy-flange-insert-21mm-compatible-with-momcozy-s9-pro-s12 store_origin: AR region: Argentina --- # Precision 21mm fit Universal compatibility Durable original quality Momcozy Flange Insert 21mm Compatible with Momcozy S9 Pro/S12 Pro/Medela/Spectra 24mm Shields/Flanges. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 4PCS (21mm) **Brand:** momcozy **Price:** AR$1716 **Availability:** ❌ Out of Stock ## Summary > 🍼 Upgrade your pump game with precision and comfort! ## Quick Answers - **What is this?** Momcozy Flange Insert 21mm Compatible with Momcozy S9 Pro/S12 Pro/Medela/Spectra 24mm Shields/Flanges. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 4PCS (21mm) by momcozy - **How much does it cost?** AR$1716 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/733412889-momcozy-flange-insert-21mm-compatible-with-momcozy-s9-pro-s12) ## Best For - momcozy enthusiasts ## Why This Product - Trusted momcozy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Perfect 21mm Fit:** Seamlessly integrates with Momcozy S9 Pro/S12 Pro and major brands like Medela & Spectra for optimal comfort and efficiency. - • **Set of 4 Inserts:** Keep your pumping routine uninterrupted with a convenient 4-piece pack—always have a fresh insert ready. - • **Universal Compatibility:** Works flawlessly with 24mm shields/flanges, making it a versatile upgrade for your breast pump setup. - • **Durable Original Quality:** Crafted as an original replacement accessory ensuring long-lasting performance and reliability. - • **Hygienic & Easy to Clean:** Designed for effortless maintenance, supporting your busy lifestyle with quick and hygienic care. ## Overview The Momcozy 21mm Flange Insert is a premium replacement accessory compatible with Momcozy S9 Pro/S12 Pro and popular brands like Medela and Spectra. This 4-piece set ensures a perfect fit for 24mm shields, delivering durable, hygienic, and comfortable pumping sessions tailored for the modern mom. ## Description Momcozy Flange Insert 21mm Compatible with Momcozy S9 Pro/S12 Pro/Medela/Spectra 24mm Shields/Flanges. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 4PCS (21mm) Review: Buy it if your size is 21 mm - Falange sizes super important especially if your looking for great milk out put. I used the bigger sizes if didn’t work until I measured and actually my size was 21 mm so I think I recommend you buy your correct Falange size. This fits my momcozy s12 pro and I also believe it’ll fit momcozy s9. These are also comfy when it’s your correct size. It won’t be as painful. I recommend. Review: A must for pumping - Made all the difference in the world. So much of breastfeeding is a new experience, I didn't know the difference the insert would make. My pump wasn't pulling any milk at first, but with the insert I had no problems. Easy to clean. Make sure to measure to get the correct size. ## Features - PJ - Momcozy Flange Insert 21mm Compatible with Momcozy S9 Pro/S12 Pro/Medela/Spectra 24mm Shields/Flanges. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 4PCS (21mm) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CFR2ZLMK | | Brand | momcozy | | Brand Name | momcozy | | Customer Reviews | 4.4 out of 5 stars 426 Reviews | | Dishwasher safe? | Yes | | Is the item dishwasher safe? | Yes | | Item Weight | 1.1 Ounces | | Item weight | 1.1 Ounces | | Manufacturer | Momcozy | | Manufacturer Part Number | PJ | | Model Number | PJ | | Number of Items | 1 | | Number of items | 1 | | Power Source | Battery Powered | | Power source | Battery Powered | | Size | 4pcs-21mm | | Special Features | Lightweight | | Special feature | Lightweight | | UPC | 810123501472 | ## Product Details - **Brand:** momcozy - **Special feature:** Lightweight - **Power source:** Battery Powered - **Number of items:** 1 - **Item weight:** 1.1 Ounces - **Dishwasher safe?:** Yes - **Size:** 4pcs-21mm - **UPC:** 810123501472 - **Manufacturer:** Momcozy ## Images ![Momcozy Flange Insert 21mm Compatible with Momcozy S9 Pro/S12 Pro/Medela/Spectra 24mm Shields/Flanges. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 4PCS (21mm) - Image 1](https://m.media-amazon.com/images/I/612p9sQ8-iL.jpg) ![Momcozy Flange Insert 21mm Compatible with Momcozy S9 Pro/S12 Pro/Medela/Spectra 24mm Shields/Flanges. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 4PCS (21mm) - Image 2](https://m.media-amazon.com/images/I/61WvXnVhX9L.jpg) ![Momcozy Flange Insert 21mm Compatible with Momcozy S9 Pro/S12 Pro/Medela/Spectra 24mm Shields/Flanges. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 4PCS (21mm) - Image 3](https://m.media-amazon.com/images/I/71A51tPVnSL.jpg) ![Momcozy Flange Insert 21mm Compatible with Momcozy S9 Pro/S12 Pro/Medela/Spectra 24mm Shields/Flanges. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 4PCS (21mm) - Image 4](https://m.media-amazon.com/images/I/611YXogJqXL.jpg) ![Momcozy Flange Insert 21mm Compatible with Momcozy S9 Pro/S12 Pro/Medela/Spectra 24mm Shields/Flanges. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 4PCS (21mm) - Image 5](https://m.media-amazon.com/images/I/51r9IJd0QVL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Buy it if your size is 21 mm *by S***A on 14 February 2025* Falange sizes super important especially if your looking for great milk out put. I used the bigger sizes if didn’t work until I measured and actually my size was 21 mm so I think I recommend you buy your correct Falange size. This fits my momcozy s12 pro and I also believe it’ll fit momcozy s9. These are also comfy when it’s your correct size. It won’t be as painful. I recommend. ### ⭐⭐⭐⭐⭐ A must for pumping *by M***L on 15 December 2025* Made all the difference in the world. So much of breastfeeding is a new experience, I didn't know the difference the insert would make. My pump wasn't pulling any milk at first, but with the insert I had no problems. Easy to clean. Make sure to measure to get the correct size. ### ⭐⭐⭐⭐⭐ Worked like a charm *by H***S on 28 December 2025* Compatible with the Momcozy S12 hands-free pump. Solved my painful pumping sessions and improved my milk output! ## Frequently Bought Together - Momcozy Flange Insert 21mm Compatible with 24mm Flange/Shield of Most Pumps, Insert for Breast Pump Replacement Accessories, 4PCS 21mm - Momcozy Original S9 Pro/S12 Pro Replacement Accessories, Only Compatible with Momcozy S9 Pro/S12 Pro Breast Pump NOT for S9/S12 (Single-Sealed Full Set Collector Cup with 24mm Flange,180ml, 1 Pack) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/733412889-momcozy-flange-insert-21mm-compatible-with-momcozy-s9-pro-s12](https://www.desertcart.com.ar/products/733412889-momcozy-flange-insert-21mm-compatible-with-momcozy-s9-pro-s12) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-10-27*