--- product_id: 648582697 title: "stonylab Silicone Stopper with Thread, 19# Natural Silicone Septum Stopper Fit for 19/22 Outer Joint Lab Glassware, Sleeve Type, Pack of 10" brand: "stonylab" price: "54750CFA" currency: XOF in_stock: true reviews_count: 3 category: "Stonylab" url: https://www.desertcart.sn/products/648582697-stonylab-silicone-stopper-with-thread-19-natural-silicone-septum-stopper store_origin: SN region: Senegal --- # 19mm I.D. Pack of 10 Reusable silicone stonylab Silicone Stopper with Thread, 19# Natural Silicone Septum Stopper Fit for 19/22 Outer Joint Lab Glassware, Sleeve Type, Pack of 10 **Brand:** stonylab **Price:** 54750CFA **Availability:** ✅ In Stock ## Summary > 🔧 Seal the Deal with StonyLab's Silicone Stopper! ## Quick Answers - **What is this?** stonylab Silicone Stopper with Thread, 19# Natural Silicone Septum Stopper Fit for 19/22 Outer Joint Lab Glassware, Sleeve Type, Pack of 10 by stonylab - **How much does it cost?** 54750CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/648582697-stonylab-silicone-stopper-with-thread-19-natural-silicone-septum-stopper) ## Best For - stonylab enthusiasts ## Why This Product - Trusted stonylab brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Avoid cross-contamination with dedicated stoppers for each application. - • **Precision Fit:** Designed for 19/22 outer joint lab glassware, ensuring a snug and secure seal. - • **Durable Material:** Crafted from high-quality silicone, these stoppers are built to last and withstand repeated use. - • **Threaded Convenience:** Innovative thread design prevents accidental disconnections during experiments. - • **Customer Satisfaction Guaranteed:** StonyLab prioritizes your experience; contact us for any issues and we’ll make it right! ## Overview The StonyLab Silicone Stopper Pack includes 10 high-quality, reusable stoppers designed for 19/22 outer joint lab glassware. Featuring a threaded design for secure connections, these stoppers are essential for any laboratory setup, ensuring safety and reliability in your experiments. ## Description Descriptionstonylab engages in providing premium products to customers. We provide 12 months limited warranty and promise for excellent customer service. Please do not hesitate to contact us for any questions or concerns. We are always here to assist. Review: Good elastic quality. Not sure about the max temp. it can withstand. - I opened a hole in the middle to cross through a small glass tube so I can place my K2-Type Thermometer Probe in very toxic or high temp. reactions and it seems to be working fine. Review: Can be used to seal a decanter. - I used this to fix a mismatched stopper on a decanter. Used a blade to cut it down, but worked great. Saved the bargain lead Cristal decanter. ## Features - Pack of 10 - I.D. 19mm (19#) stopper is suitable for glassware with matching joint of 19/22 in laboratory - Thread design is convenient to use and avoid accident disconnecting - High quality silicone material, reusable but please avoid cross-use - StonyLab ensures high quality products and premium customer service; if received damaged, please contact us immediately; we will solve it until satisfied ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | stonylab | | Manufacturer | StonyLab Scientific | | Country of Origin | USA | | Number of Memory Sticks | 10 | | Item Weight | 3 g | | Product Dimensions | 1.9 x 1.9 x 2.2 cm; 3 g | | Item part number | SiliconeStopper-10PK-19# | | Item Height | 2.2 Centimeters | | Item Width | 1.9 Centimeters | | Are batteries included? | No | ## Images ![stonylab Silicone Stopper with Thread, 19# Natural Silicone Septum Stopper Fit for 19/22 Outer Joint Lab Glassware, Sleeve Type, Pack of 10 - Image 1](https://m.media-amazon.com/images/I/51l-PbGadnL.jpg) ![stonylab Silicone Stopper with Thread, 19# Natural Silicone Septum Stopper Fit for 19/22 Outer Joint Lab Glassware, Sleeve Type, Pack of 10 - Image 2](https://m.media-amazon.com/images/I/51mECOgdOEL.jpg) ![stonylab Silicone Stopper with Thread, 19# Natural Silicone Septum Stopper Fit for 19/22 Outer Joint Lab Glassware, Sleeve Type, Pack of 10 - Image 3](https://m.media-amazon.com/images/I/51iUzPTnnwL.jpg) ![stonylab Silicone Stopper with Thread, 19# Natural Silicone Septum Stopper Fit for 19/22 Outer Joint Lab Glassware, Sleeve Type, Pack of 10 - Image 4](https://m.media-amazon.com/images/I/519P2qGcdSL.jpg) ![stonylab Silicone Stopper with Thread, 19# Natural Silicone Septum Stopper Fit for 19/22 Outer Joint Lab Glassware, Sleeve Type, Pack of 10 - Image 5](https://m.media-amazon.com/images/I/61dpiz2IicL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good elastic quality. Not sure about the max temp. it can withstand. *by G***S on 6 May 2024* I opened a hole in the middle to cross through a small glass tube so I can place my K2-Type Thermometer Probe in very toxic or high temp. reactions and it seems to be working fine. ### ⭐⭐⭐⭐⭐ Can be used to seal a decanter. *by S***Y on 17 April 2026* I used this to fix a mismatched stopper on a decanter. Used a blade to cut it down, but worked great. Saved the bargain lead Cristal decanter. ### ⭐⭐⭐⭐⭐ Great quality *by M***O on 24 July 2024* Very happy ## Frequently Bought Together - stonylab Silicone Stopper with Thread, 19# Natural Silicone Septum Stopper Fit for 19/22 Outer Joint Lab Glassware, Sleeve Type, Pack of 10 - 12 pcs Keck Clips Ground Joints #24, Standard Taper POM for Joints 24/29 and 24/40 - stonylab Rubber Stopper, 14# Natural Rubber Septum Stopper Fit for 14/20 Outer Joint Lab Glassware, Sleeve Type, Pack of 10 --- ## 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.sn/products/648582697-stonylab-silicone-stopper-with-thread-19-natural-silicone-septum-stopper](https://www.desertcart.sn/products/648582697-stonylab-silicone-stopper-with-thread-19-natural-silicone-septum-stopper) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-08-12*