--- product_id: 1804058 title: "16x150mm Borosilicate Glass Test Tubes with Cork Stoppers, 23ml Vol, Karter Scientific 201B1 (Pack of 10)" brand: "karter scientific" price: "63.70 DT" currency: TND in_stock: true reviews_count: 13 category: "Karter Scientific" url: https://www.desertcart.tn/products/1804058-16x150mm-borosilicate-glass-test-tubes-with-cork-stoppers-23ml-vol store_origin: TN region: Tunisia --- # 23ml precise volume 16x150mm borosilicate glass high-quality cork stoppers 16x150mm Borosilicate Glass Test Tubes with Cork Stoppers, 23ml Vol, Karter Scientific 201B1 (Pack of 10) **Brand:** karter scientific **Price:** 63.70 DT **Availability:** βœ… In Stock ## Summary > 🧬 Elevate your experiments with precision and style! ## Quick Answers - **What is this?** 16x150mm Borosilicate Glass Test Tubes with Cork Stoppers, 23ml Vol, Karter Scientific 201B1 (Pack of 10) by karter scientific - **How much does it cost?** 63.70 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/1804058-16x150mm-borosilicate-glass-test-tubes-with-cork-stoppers-23ml-vol) ## Best For - karter scientific enthusiasts ## Why This Product - Trusted karter scientific brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Perfect 23ml Capacity:** Ideal volume for precise measurements and versatile lab applications. - β€’ **Lightweight Yet Sturdy:** Thinner walls for easier handling without compromising strength or clarity. - β€’ **Eco-Friendly Cork Seals:** Natural cork stoppers that are fresh, pliable, and reusable for sustainable lab work. - β€’ **Pre-Assembled Convenience:** Ready-to-use packs of 10 test tubes with matching cork stoppersβ€”no hassle, just science. - β€’ **Lab-Grade Borosilicate Glass:** Durable, heat-resistant, and crystal clear for flawless experiments. ## Overview This pack of 10 borosilicate glass test tubes from Karter Scientific features 16x150mm dimensions and a 23ml volume, crafted for durability and heat resistance. Each tube comes pre-assembled with high-quality natural cork stoppers, offering a lightweight yet sturdy solution perfect for professional and creative lab environments. ## Description 16x150mm Borosilicate Glass Test Tubes with Cork Stoppers. Pre-assembled in packs of 10. Including 10 test tubes and 10 corks. Review: Perfect test tube as I wished for! - This was the 4th time I ordered test tubes from desertcart. Surprisedly, they were perfect test tubes, much better than I expected: clear glass, thick enough, and exact sizes as described. Highly recommend. Review: Perfect for me, did not crack when literally melted shut as ampules - Fully able to heat and shape them just like Pyrex but a little easier!! The only reason these might crack a little easier than some people expect is because they are a little thinner, but that suits my needs better anyway. I find them plenty sturdy yet they are lighter and I had a reason for needing thinner walls. They ARE borosilicate! There are different ratings, like 3.3 Pyrex, which perhaps they are not (I may boil fluids in thicker ones). But they softened and bent (and even fused!) a little easier than thicker and/or 3.3 boro. If they supposedly crack so easily under slight heat how come I haven't cracked ONE after heating dry until finally melting them into sealed ampules like professional labware? These are perfect for what they are. Better than thicker, name brand Pyrex for me because they shield less, certain emissions of what I place inside, and are lighter. And super value. No scratches, nothing. And a free cardboard stand to complete my cardboard mad scientist lab motif. Seriously, even that target of criticism is perfect to hold them for me, to fill, until they are used and sent away individually! I don't drip something on my own stands and have to clean or paint them. If you use corks, use real cork for dry stuff, and feel out shaping some a bit with sandpaper. Even as cork goes it actually fresh and pliable compared to old, crumbling cork! I saved them for other bottles, another free perk! How much more can I get for so little money?? ## Features - Test Tubes: 16 x 150mm - High Quality Cork - Volume: 23ml - Material: Borosilicate Glass - Pre-Assembled packs of 10 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004O49X7Y | | Best Sellers Rank | #27,588 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #31 in Test Lab Tubes | | Brand Name | Karter Scientific | | Cap Type | cork stoppers | | Customer Reviews | 4.4 out of 5 stars 1,342 Reviews | | Item Dimensions | 5.91 x 0.63 x 0.63 inches | | Item Weight | 8 Ounces | | Manufacturer | Karter Scientific | | Material Type | Borosilicate Glass | | Model Number | 201B1 | | Part Number | 201B1 | | Size | 16X150MM | | UPC | 078433214349 | ## Images ![16x150mm Borosilicate Glass Test Tubes with Cork Stoppers, 23ml Vol, Karter Scientific 201B1 (Pack of 10) - Image 1](https://m.media-amazon.com/images/I/51zCBwMg3jL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect test tube as I wished for! *by S***O on December 19, 2025* This was the 4th time I ordered test tubes from Amazon. Surprisedly, they were perfect test tubes, much better than I expected: clear glass, thick enough, and exact sizes as described. Highly recommend. ### ⭐⭐⭐⭐⭐ Perfect for me, did not crack when literally melted shut as ampules *by T***. on August 6, 2021* Fully able to heat and shape them just like Pyrex but a little easier!! The only reason these might crack a little easier than some people expect is because they are a little thinner, but that suits my needs better anyway. I find them plenty sturdy yet they are lighter and I had a reason for needing thinner walls. They ARE borosilicate! There are different ratings, like 3.3 Pyrex, which perhaps they are not (I may boil fluids in thicker ones). But they softened and bent (and even fused!) a little easier than thicker and/or 3.3 boro. If they supposedly crack so easily under slight heat how come I haven't cracked ONE after heating dry until finally melting them into sealed ampules like professional labware? These are perfect for what they are. Better than thicker, name brand Pyrex for me because they shield less, certain emissions of what I place inside, and are lighter. And super value. No scratches, nothing. And a free cardboard stand to complete my cardboard mad scientist lab motif. Seriously, even that target of criticism is perfect to hold them for me, to fill, until they are used and sent away individually! I don't drip something on my own stands and have to clean or paint them. If you use corks, use real cork for dry stuff, and feel out shaping some a bit with sandpaper. Even as cork goes it actually fresh and pliable compared to old, crumbling cork! I saved them for other bottles, another free perk! How much more can I get for so little money?? ### ⭐⭐⭐⭐ Very happy *by E***N on May 1, 2014* I ordered these to use as a favor and was very nervous about how they would work out due to the reviews I read here. I do agree that they could be packaged better to avoid any breakage but thankfully, I didn't have any that arrived broken. I was also nervous about putting the corks in because several reviews said the tubes would break with hardly any pressure. I was happily surprised at the quality of the tubes - they are not extremely thin as I thought they might be, and they held up very well while I corked each one. No broken tubes!! In some I even had to press a little harder than I would have liked to get the cork to go in enough, but they all held up. With a careful hand and a little twisting of the corks, I had no problems. I'm very happy with the purchase and would absolutely buy these again. ## Frequently Bought Together - 16x150mm Borosilicate Glass Test Tubes with Cork Stoppers, 23ml Vol, Karter Scientific 201B1 (Pack of 10) - DEPEPE 30pcs 13ml Glass Test Tubes with Cork Stoppers, 15x100mm Small Clear Glass Test Tubes for Scientific Experiments, Plant Propagation and Holiday Gifts - Amazon Basics Cotton Balls for Skincare, 200 Count (Previously Solimo) --- ## 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.tn/products/1804058-16x150mm-borosilicate-glass-test-tubes-with-cork-stoppers-23ml-vol](https://www.desertcart.tn/products/1804058-16x150mm-borosilicate-glass-test-tubes-with-cork-stoppers-23ml-vol) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-14*