--- product_id: 405915079 title: "16mm 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 Tunnel Down to 16mm" brand: "durceler" price: "$35.39" currency: USD in_stock: true url: https://www.desertcart.us/products/405915079-16mm-silicone-flange-inserts-compatible-with-medela-for-spectra-s1 store_origin: US region: United States of America --- # Reduces flange tunnel from 24/25mm to 16mm Compatible with multiple major pump brands BPA-free, durable silicone for safe use 16mm 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 Tunnel Down to 16mm **Brand:** durceler **Price:** $35.39 **Availability:** βœ… In Stock ## Summary > 🎯 Perfect Fit, Maximum Flow β€” Pump Like a Pro! ## Quick Answers - **What is this?** 16mm 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 Tunnel Down to 16mm by durceler - **How much does it cost?** $35.39 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/405915079-16mm-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€’ **Hands-Free Bra Friendly:** Maintains compatibility with most hands-free bras, empowering multitasking moms on the go. - β€’ **Universal Compatibility:** Works flawlessly with Medela, Spectra, Elvie, Freemie, Momcozy, and moreβ€”no need to switch gear. - β€’ **Maximize Milk Expression:** Enhances pumping efficiency by providing a snug, trauma-free seal tailored to your anatomy. - β€’ **Safe & Comfortable Material:** Crafted from BPA-free silicone, ensuring durability and irritation-free pumping sessions. - β€’ **Precision Fit for Small Nipples:** Seamlessly reduces large 24/25mm flanges down to 16mm for optimal comfort and milk flow. ## Overview Durceler 16mm Silicone Flange Inserts are BPA-free, durable accessories designed to reduce standard 24-25mm breast pump shields down to 16mm. Compatible with leading brands like Medela, Spectra, Elvie, and Freemie, these inserts optimize comfort and milk expression for mothers with smaller nipples while maintaining hands-free bra compatibility. ## Description 16mm 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 Tunnel Down to 16mm ## Features - Durceler 16mm inserts (2pcs a Pack) to compatible with Medela / Spectra / Elvie / Rainyb / S18 S21 S23 / Momcozy S9 Pro S10 S12 Pro / TSRETE / Bellababy / NCVI 24 mm breast flanges/shields. It will reduce the 24mm shield tunnel down to 16mm. Also compatible with Freemie 25mm cups to reduce it down to 16mm. Also applicable to most other brands of the models for 24-25mm. - Seamless Compatibility For Optimal Milk Expression: Suitable for diameter 14-15mm(after a pumping session), or measure the circumference of base about 37.68 - 40.82mm before a pumping session. - Great solution for small-nippled mothers using large breast shields, Proper 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 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. ## Technical Specifications | Specification | Value | |---------------|-------| | Units | 2.0 Count | | Brand | Durceler | | material_composition | BPA Free | ## Product Details - **Brand:** Durceler - **Special features:** Lightweight, Portable - **Material:** Silicone - **Power source:** Manual - **Included components:** Breast Flange ## Images ![16mm 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 Tunnel Down to 16mm - Image 1](https://m.media-amazon.com/images/I/41CSCDj0sjL.jpg) ![16mm 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 Tunnel Down to 16mm - Image 2](https://m.media-amazon.com/images/I/61QDxocNxhL.jpg) ![16mm 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 Tunnel Down to 16mm - Image 3](https://m.media-amazon.com/images/I/71Wgo7W7WqL.jpg) ![16mm 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 Tunnel Down to 16mm - Image 4](https://m.media-amazon.com/images/I/71tayCOrpML.jpg) ![16mm 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 Tunnel Down to 16mm - Image 5](https://m.media-amazon.com/images/I/613qiWCYAWL.jpg) ## Questions & Answers **Q: is is compatible with lansinoh?** A: yes，it's compatible with lansinoh 24-25mm nipple tunnle shields/cup **Q: Are these compatible with a medela personal flex fit flange?** A: yes, it's ok **Q: Is it compatible with joysa hands free breast pump?** A: yes, it's ok compatible with 24-25mm joysa hands free breast pump flanges. **Q: Will this fit a 27mm?** A: It will fit in the container and flange for reusable bags. ## Frequently Bought Together - Durceler 16mm 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 16mm - Maymom 16mm 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 - Medela Contact Nipple Shields, Small 16mm | For Latching Difficulties during Breastfeeding, Flat or Inverted Nipples --- ## 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.us/products/405915079-16mm-silicone-flange-inserts-compatible-with-medela-for-spectra-s1](https://www.desertcart.us/products/405915079-16mm-silicone-flange-inserts-compatible-with-medela-for-spectra-s1) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-19*