--- product_id: 673226033 title: "8Pc Duckbill Valves 8Pc Flange Inserts and 4Pc Silicone Diaphragm Compatible with Momcozy M5, Replacement M5 Pump Parts Accessories Made by Tbuymax, Not Original Momcozy Pump Parts" brand: "tb tbuymax" price: "£18.93" currency: GBP in_stock: true reviews_count: 8 category: "Tb Tbuymax" url: https://www.desertcart.co.uk/products/673226033-8pc-duckbill-valves-8pc-flange-inserts-and-4pc-silicone-diaphragm store_origin: GB region: United Kingdom --- # Closed system protects pump motor 8 duckbill valves for optimal suction BPA-free, food-grade silicone safety 8Pc Duckbill Valves 8Pc Flange Inserts and 4Pc Silicone Diaphragm Compatible with Momcozy M5, Replacement M5 Pump Parts Accessories Made by Tbuymax, Not Original Momcozy Pump Parts **Brand:** tb tbuymax **Price:** £18.93 **Availability:** ✅ In Stock ## Summary > 🍼 Upgrade your pump game—because your milk deserves the best! ## Quick Answers - **What is this?** 8Pc Duckbill Valves 8Pc Flange Inserts and 4Pc Silicone Diaphragm Compatible with Momcozy M5, Replacement M5 Pump Parts Accessories Made by Tbuymax, Not Original Momcozy Pump Parts by tb tbuymax - **How much does it cost?** £18.93 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/673226033-8pc-duckbill-valves-8pc-flange-inserts-and-4pc-silicone-diaphragm) ## Best For - tb tbuymax enthusiasts ## Why This Product - Trusted tb tbuymax brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Closed System Design:** Prevents milk contact with the pump motor, extending device life and ensuring hygienic pumping. - • **Complete 20-Piece Set:** Includes 8 duckbill valves, 8 flange inserts (4 sizes), and 4 silicone diaphragms for a perfect pump refresh. - • **Precision Fit for Momcozy M5:** Seamlessly compatible replacement parts that boost your pump’s efficiency and milk supply. - • **Premium Food-Grade Materials:** Crafted from BPA-free silicone ensuring absolute safety for your baby’s milk. - • **Effortless Cleaning & Maintenance:** Simple to clean with soapy water—no harsh brushes needed, keeping hygiene stress-free. ## Overview This 20-piece replacement kit by Tbuymax is designed for Momcozy M5 breast pumps, featuring 8 duckbill valves, 8 flange inserts in multiple sizes, and 4 silicone diaphragms. Made from BPA-free, food-grade silicone, it ensures safe, hygienic milk expression with a closed system that protects your pump motor. Easy to clean and highly compatible, it’s a trusted choice to boost your pumping efficiency and milk supply. ## Description desertcart.com : 8Pc Duckbill Valves 8Pc Flange Inserts and 4Pc Silicone Diaphragm Compatible with Momcozy M5, Replacement M5 Pump Parts Accessories Made by Tbuymax, Not Original Momcozy Pump Parts : Baby Review: Very Happy - Very happy. Was worried about mixed reviews that it wouldn’t work with my pump. M5 mom cozy all pieces fit perf and my supply doubled compared to my old parts. Review: Compatible with S2 pump - Worked great with my spectra s2 pump ## Features - Content: 8 pcs duckbill valves, 4pcs Silicone membrane and 8 pcs flange inserts (15/17/19/21mm*2pcs) Compatible with Momcozy M5 wearable breast pump. Same suction as OEM pump parts. - Material Safety: BPA free and made from food-grade materials, giving you peace of mind about your baby's milk - Easy to Clean: Clean with soapy water and rinse with clean water. Do not use hard brushes. - ll items packaged in retail pack, sealed by manufacturer for best protection. - CLOSE SYSTEM: No contact between milk and pump, which protectors your pump motor. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DLB2ZQP9 | | ASIN | B0DLB2ZQP9 | | Additional Features | Closed System | | Best Sellers Rank | #21,259 in Baby ( See Top 100 in Baby ) #284 in Electric Breast Pumps | | Brand Name | TB Tbuymax | | Color | Transparent | | Customer Reviews | 4.6 4.6 out of 5 stars (65) | | Date First Available | October 29, 2024 | | Item Weight | 0.26 Kilograms | | Item model number | tb071 | | Manufacturer | Tbuymax | | Manufacturer | Tbuymax | | Manufacturer Part Number | tb071 | | Material Type | Silicone | | Model Number | tb071 | | Number of Items | 20 | | Package Dimensions | 5.98 x 5.83 x 2.8 inches; 9.14 ounces | | Unit Count | 20 Count | ## Product Details - **Brand:** TB Tbuymax - **Color:** Transparent - **Material:** Silicone - **Number of Items:** 20 - **Special Feature:** Closed System ## Images ![8Pc Duckbill Valves 8Pc Flange Inserts and 4Pc Silicone Diaphragm Compatible with Momcozy M5, Replacement M5 Pump Parts Accessories Made by Tbuymax, Not Original Momcozy Pump Parts - Image 1](https://m.media-amazon.com/images/I/71bcJVPPS9L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very Happy *by M***T on July 30, 2025* Very happy. Was worried about mixed reviews that it wouldn’t work with my pump. M5 mom cozy all pieces fit perf and my supply doubled compared to my old parts. ### ⭐⭐⭐⭐⭐ Compatible with S2 pump *by K***Y on March 12, 2026* Worked great with my spectra s2 pump ### ⭐⭐⭐⭐⭐ Great *by E***A on September 24, 2025* Fit perfect on my pumps ## Frequently Bought Together - 8Pc Duckbill Valves 8Pc Flange Inserts and 4Pc Silicone Diaphragm Compatible with Momcozy M5, Replacement M5 Pump Parts Accessories Made by Tbuymax, Not Original Momcozy Pump Parts - Momcozy Natural Breast Pump Wipes for Pump Parts Cleaning On-the-go, 30 Count (Pack of 3), Flash Clean & Resealable Pump Wipes - Momcozy Bottle Brush Kit, Innovative Push-Press Design for Better Cleaning - Baby Bottle Cleaner Brush for Baby Bottle, Breast Pumps, Nipples, and More - Can Generate Foam for Better Cleaning, Green --- ## 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.co.uk/products/673226033-8pc-duckbill-valves-8pc-flange-inserts-and-4pc-silicone-diaphragm](https://www.desertcart.co.uk/products/673226033-8pc-duckbill-valves-8pc-flange-inserts-and-4pc-silicone-diaphragm) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-02*