--- product_id: 404540151 title: "20mm Silicone Flange Inserts Compatible with Medela/for Spectra S1 S2 / Elvie / S18 S21 / Momcozy S9 S12/ TSRETE 24mm Breast Pump Shields or Freemie 25mm; Reduce Nipple Tunnel Down to 20mm" brand: "durceler" price: "€ 29.42" currency: EUR in_stock: true url: https://www.desertcart.hr/products/404540151-20mm-silicone-flange-inserts-compatible-with-medela-for-spectra-s1 store_origin: HR region: Croatia --- # Maximized Milk Expression Seamless Compatibility BPA Free Material 20mm Silicone Flange Inserts Compatible with Medela/for Spectra S1 S2 / Elvie / S18 S21 / Momcozy S9 S12/ TSRETE 24mm Breast Pump Shields or Freemie 25mm; Reduce Nipple Tunnel Down to 20mm **Brand:** durceler **Price:** € 29.42 **Availability:** βœ… In Stock ## Summary > πŸ‘Ά Pump Smarter, Not Harder! ## Quick Answers - **What is this?** 20mm Silicone Flange Inserts Compatible with Medela/for Spectra S1 S2 / Elvie / S18 S21 / Momcozy S9 S12/ TSRETE 24mm Breast Pump Shields or Freemie 25mm; Reduce Nipple Tunnel Down to 20mm by durceler - **How much does it cost?** € 29.42 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/404540151-20mm-silicone-flange-inserts-compatible-with-medela-for-spectra-s1) ## Best For - durceler enthusiasts ## Why This Product - Trusted durceler brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Efficient Milk Output:** Designed to enhance milk expression while minimizing nipple trauma. - β€’ **Hands-Free Convenience:** Easily integrates with most hands-free bras for ultimate freedom. - β€’ **Durable Silicone Design:** Crafted from high-quality silicone for long-lasting use and comfort. - β€’ **Perfect Fit for Comfort:** Transform your pumping experience with a snug fit for small nipples. - β€’ **Universal Compatibility:** Works with Medela, Spectra, Elvie, and moreβ€”no brand left behind! ## Overview The Durceler 20mm Silicone Flange Inserts are designed to reduce the nipple tunnel size of 24mm breast pump shields to a comfortable 20mm, ensuring a perfect fit for small-nippled mothers. Made from durable, BPA-free silicone, these inserts enhance milk expression efficiency while providing comfort and compatibility with a wide range of breast pump brands. ## Description 20mm Silicone Flange Inserts Compatible with Medela/for Spectra S1 S2 / Elvie / S18 S21 / Momcozy S9 S12/ TSRETE 24mm Breast Pump Shields or Freemie 25mm; Reduce Nipple Tunnel Down to 20mm ## Features - Durceler 20mm inserts (2pcs a Pack) to compatible with Medela / Spectra / Elvie / S18 S21 S23 / Momcozy S9 Pro S10 S12 Pro / TSRETE / Bellababy / NCVI 24 mm breast flanges/shields. It will reduce the 24mm shield nipple tunnel down to 20mm. Also compatible with Freemie 25mm cups to reduce it down to 20mm. Also applicable to most other brands of the models for 24-25mm. - Seamless Compatibility For Optimal Milk Expression: Suitable for nipple diameter 18-19mm(after a pumping session), or measure the circumference of nipple base about 50.24 - 53.38mm before a pumping session. - Great solution for small-nippled mothers using large breast shields, Proper nipple tunnel fit is essential for comfort and efficient milk output. It can be compatible with Spectra and Medela (Freestyle, Harmony, Sonata, and Swing-Maxi pumps) and other brands. - BPA free, made of silicone material. Durable, clear, and comfortable. This accessory helps breast shields for more effective pumping and maximized milk expression while helping to avoid nipple trauma or irritation. - Maintain compatibility with most handsfree bra. You can use most handsfree bra cups with they original 24/25mm detachable shields having this insert inside. During operation, you need to squeeze slightly to make the Insert fully fit with the shield to achieve the perfect effect. ## Product Details - **Brand:** Durceler - **Special Feature:** Bpa Free - **Material:** Silicone - **Included Components:** Breast Flange - **Number of Items:** 2 ## Images ![20mm Silicone Flange Inserts Compatible with Medela/for Spectra S1 S2 / Elvie / S18 S21 / Momcozy S9 S12/ TSRETE 24mm Breast Pump Shields or Freemie 25mm; Reduce Nipple Tunnel Down to 20mm - Image 1](https://m.media-amazon.com/images/I/4151BlpG2iL.jpg) ## Questions & Answers **Q: Is the size labeled into each piece so not to be confused with similar items of another size?** A: I use this and place it into size 24mm flange because size 24mm flange is big for me. **Q: Is this compatibility with bellababy wearable breast pump?** A: yes , it's ok for 24mm bellababy **Q: Do these work with the zomee pump?** A: yes ,it's ok for 24-25mm flange of the zomee pump **Q: Will these work with the momcozy s12 pro?** A: yes, it's ok, it can work with the momcozy s12 pro for 24-25mm flanges . ## Frequently Bought Together - Durceler 20mm Silicone Flange Inserts Compatible with Medela/for Spectra S1 S2 / Elvie / S18 S21 / Momcozy S9 S12/ TSRETE 24mm Breast Pump Shields or Freemie 25mm; Reduce Nipple Tunnel Down to 20mm - Medela Contact Nipple Shields, Medium 20mm | For Latching Difficulties during Breastfeeding, Flat or Inverted Nipples - Maymom 20 mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/404540151-20mm-silicone-flange-inserts-compatible-with-medela-for-spectra-s1](https://www.desertcart.hr/products/404540151-20mm-silicone-flange-inserts-compatible-with-medela-for-spectra-s1) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-18*