--- product_id: 75054259 title: "StonyLab Glass 500ml Heavy Wall Single Neck Round Bottom Flask RBF, with 24/40 Standard Taper Outer Joint โ€“ 500ml" brand: "stonylab" price: "14557 som" currency: KGS in_stock: true category: "Stonylab" url: https://www.desertcart.kg/products/75054259-stonylab-glass-500ml-heavy-wall-single-neck-round-bottom-flask store_origin: KG region: Kyrgyzstan --- # Heavy wall borosilicate glass Max 450ยฐC heat tolerance 24/40 standard taper joint StonyLab Glass 500ml Heavy Wall Single Neck Round Bottom Flask RBF, with 24/40 Standard Taper Outer Joint โ€“ 500ml **Brand:** stonylab **Price:** 14557 som **Availability:** โœ… In Stock ## Summary > ๐Ÿงช Elevate your lab game with precision and durability! ## Quick Answers - **What is this?** StonyLab Glass 500ml Heavy Wall Single Neck Round Bottom Flask RBF, with 24/40 Standard Taper Outer Joint โ€“ 500ml by stonylab - **How much does it cost?** 14557 som with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/75054259-stonylab-glass-500ml-heavy-wall-single-neck-round-bottom-flask) ## 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 - โ€ข **Optimal Capacity:** Generous 500ml volume ideal for versatile reactions, distillations, and heating tasks. - โ€ข **Lab-Grade Durability:** Crafted from premium borosilicate glass to resist thermal shock and harsh chemicals. - โ€ข **Universal Compatibility:** Equipped with a 24/40 standard taper outer joint for seamless integration with your lab apparatus. - โ€ข **Trusted Quality Assurance:** Backed by a 1-year limited manufacturer warranty for peace of mind. - โ€ข **Heat-Resistant Performance:** Withstands up to 450ยฐC and sudden temperature changes of 140ยฐC for reliable lab work. ## Overview The StonyLab 500ml Heavy Wall Round Bottom Flask is a robust borosilicate glass vessel designed for professional laboratory use. Featuring a 24/40 standard taper outer joint, it ensures compatibility with common lab setups. Engineered to endure temperatures up to 450ยฐC and rapid thermal shifts of 140ยฐC, this flask supports a wide range of chemical reactions and distillations with reliable performance and comes with a 1-year limited warranty. ## Description Buy StonyLab Glass 500ml Heavy Wall Single Neck Round Bottom Flask RBF, with 24/40 Standard Taper Outer Joint โ€“ 500ml at desertcart UK. Free delivery on eligible orders. ## Features - This flask widely used in laboratory settings including reactions, distillation processes, mixing, and heating operations - Engineered with 24/40 standard taper outer joint, ensuring connection with compatible apparatus, 500 ml capacity - Crafted from durable borosilicate glass, it delivers outstanding resistance to harsh and sudden temperature fluctuations - Designed for reliable performance with a maximum working temperature of 450ยฐC and can withstand instantaneous temperature differences up to 140ยฐC - 1-year limited manufacturer warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B076GPMWM6 | | Best Sellers Rank | 49,583 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 44 in Lab Flasks | | Bottom Shape | Round | | Brand | stonylab | | Capacity | 500 ml | | Country Of Origin | China | | Customer Reviews | 4.6 4.6 out of 5 stars (109) | | Graduation Interval | 500 Millilitres | | Item Shape | Round | | Item Weight | 285.1 Grams | | Manufacturer | StonyLab Scientific | | Manufacturer Part Number | US-RBF-1Neck-Glass-500ml | | Material Type | Glass | | Model Number | SL000666 | | Number of Items | 1 | ## Product Details - **Bottom shape:** Round - **Brand:** stonylab - **Capacity:** 500 ml - **Graduation interval:** 500 Millilitres - **Manufacturer:** StonyLab Scientific - **Material:** Glass - **Number of items:** 1 - **Shape:** Round ## Images ![StonyLab Glass 500ml Heavy Wall Single Neck Round Bottom Flask RBF, with 24/40 Standard Taper Outer Joint โ€“ 500ml - Image 1](https://m.media-amazon.com/images/I/31rK-yxk6NL.jpg) ![StonyLab Glass 500ml Heavy Wall Single Neck Round Bottom Flask RBF, with 24/40 Standard Taper Outer Joint โ€“ 500ml - Image 2](https://m.media-amazon.com/images/I/31BgC1E0dfL.jpg) ![StonyLab Glass 500ml Heavy Wall Single Neck Round Bottom Flask RBF, with 24/40 Standard Taper Outer Joint โ€“ 500ml - Image 3](https://m.media-amazon.com/images/I/31v+zIFoQqL.jpg) ![StonyLab Glass 500ml Heavy Wall Single Neck Round Bottom Flask RBF, with 24/40 Standard Taper Outer Joint โ€“ 500ml - Image 4](https://m.media-amazon.com/images/I/31N2v8BBaHL.jpg) ![StonyLab Glass 500ml Heavy Wall Single Neck Round Bottom Flask RBF, with 24/40 Standard Taper Outer Joint โ€“ 500ml - Image 5](https://m.media-amazon.com/images/I/516RM-lk9XL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Can this flask be used with a rotary evaporator?** A: Yes, it is like any round bottom flask with a 24/40 joint. I gotten a number of items from Stony Labs and they are all good quality. **Q: The standard 24/40 clips do not work with these. Can you recommend what will work please?** A: Dear Customer, Here it the clip link for your reference: https://www.amazon.com/dp/B07JM8QPXQ?ref=myi_title_dp Thanks, StonyLab **Q: What size clip is needed for these heavy walled flasks? I purchased the green stony lab clips and they are just the standard 24/40 size.** A: The 24/40 clips should work fine. --- ## Why Shop on Desertcart? - ๐Ÿ›’ **Trusted by 1.3+ Million Shoppers** โ€” Serving international shoppers since 2016 - ๐ŸŒ **Shop Globally** โ€” Access 737+ million products across 21 categories - ๐Ÿ’ฐ **No Hidden Fees** โ€” All customs, duties, and taxes included in the price - ๐Ÿ”„ **15-Day Free Returns** โ€” Hassle-free returns (30 days for PRO members) - ๐Ÿ”’ **Secure Payments** โ€” Trusted payment options with buyer protection - โญ **TrustPilot Rated 4.5/5** โ€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kg/products/75054259-stonylab-glass-500ml-heavy-wall-single-neck-round-bottom-flask](https://www.desertcart.kg/products/75054259-stonylab-glass-500ml-heavy-wall-single-neck-round-bottom-flask) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-08-27*