--- product_id: 74736604 title: "Laboy Glass 50mL Heavy Wall Pear-Shaped Flask with 24/40 Joint, Borosilicate 3.3 Hand-Blown Recovery Flask for Rotary Evaporator, Organic Chemistry Pack of 2" brand: "laboy" price: "฿2337" currency: THB in_stock: true reviews_count: 2 category: "Laboy" url: https://www.desertcart.co.th/products/74736604-laboy-glass-50ml-heavy-wall-pear-shaped-flask-with-24 store_origin: TH region: Thailand --- # Laboy Glass 50mL Heavy Wall Pear-Shaped Flask with 24/40 Joint, Borosilicate 3.3 Hand-Blown Recovery Flask for Rotary Evaporator, Organic Chemistry Pack of 2 **Brand:** laboy **Price:** ฿2337 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Laboy Glass 50mL Heavy Wall Pear-Shaped Flask with 24/40 Joint, Borosilicate 3.3 Hand-Blown Recovery Flask for Rotary Evaporator, Organic Chemistry Pack of 2 by laboy - **How much does it cost?** ฿2337 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/74736604-laboy-glass-50ml-heavy-wall-pear-shaped-flask-with-24) ## Best For - laboy enthusiasts ## Why This Product - Trusted laboy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Laboy Glass 50mL Heavy Wall Pear-Shaped Flask with 24/40 Joint, Borosilicate 3.3 Hand-Blown Recovery Flask for Rotary Evaporator, Organic Chemistry Pack of 2: desertcart.com: Industrial & Scientific Review: The BEST !! - Laboy is absolutely the best lab glass Ive ever held in my hands, let alone had the pleasure to work with. Its thick and beefy and will stand up to whatever you want to use it for. You wont go wrong with this company. It does take about a month to get to you since it comes from Beijing China, but its well worth the wait. Review: Arrives faster than predicted, seems perfect - Exactly what I wanted. Also quite rugged — didn't break when I dropped it. Ground-glass joints precisely fit other Laboy items. ## Features - Extreme Durability & Heavy Wall Construction: Engineered with extra-heavy 3.5mm to 5mm thick walls. This robust structure significantly improves mechanical strength and resistance to accidental breakage, far exceeding the durability of standard laboratory glassware. - Scientifically Annealed at 560°C: Each flask undergoes a precise annealing process at 560°C to effectively remove internal strain. This critical step ensures maximum thermal stability, allowing the flask to withstand direct flame and rapid temperature changes without cracking. - Maximized Solvent Recovery: The pear-shaped design maximizes surface area relative to volume. This geometry is engineered to improve evaporation efficiency by 10-15% compared to round-bottom flasks, ensuring minimal loss of valuable samples. - Standard 24/40 Joint Compatibility: Precision ground to fit standard rotary evaporators and distillation systems. The 24/40 taper offers versatile connectivity for broader laboratory setups while maintaining a secure, vacuum-tight seal for efficient operation. - Hassle-Free After-Sales Support: We pack with extra care using reinforced boxes. However, if your flask arrives broken due to shipping, please contact us directly for an immediate replacement or refund—no return required. We are here to ensure your experiments proceed without delay. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0GCBPCQM9 | | Best Sellers Rank | #735,800 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Lab Recovery Flasks | | Brand Name | LABOY | | Customer Reviews | 5.0 out of 5 stars 6 Reviews | | Manufacturer | Laboy | | Part Number | HMF011110 | | Unit Count | 2.0 Count | ## Images ![Laboy Glass 50mL Heavy Wall Pear-Shaped Flask with 24/40 Joint, Borosilicate 3.3 Hand-Blown Recovery Flask for Rotary Evaporator, Organic Chemistry Pack of 2 - Image 1](https://m.media-amazon.com/images/I/414dRPhVtVL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What is the main advantage of this pear-shaped design compared to a standard round-bottom flask?** A: The tapered bottom allows for maximized recovery of liquids and solids. It is specifically designed for rotary evaporators to concentrate the solution to a small volume, making it much easier to remove the final residue with a pipette or spatula. **Q: Is this flask suitable for high-vacuum applications? I'm worried about implosion.** A: Yes, absolutely. This is a Heavy Wall flask made from high-quality Borosilicate 3.3 glass. It features a reinforced wall thickness and is annealed at 560°C to remove thermal stress, ensuring safety under high vacuum and varying pressures. **Q: Will these joints fit my existing glassware from other major US brands (like Chemglass or Ace)?** A: Yes, the ground glass joints (14/20 or 24/40) are manufactured strictly according to US Standard Taper specifications. They offer a universal fit and a leak-proof seal with any standard lab glassware or rotary evaporator setups. **Q: Is it difficult to clean the bottom tip of the flask?** A: While the tapered shape concentrates samples, the smooth interior surface of our Borosilicate 3.3 glass minimizes residue adhesion. For sticky substances, we recommend using an ultrasonic bath or a standard flask brush to easily reach the bottom. **Q: Glassware often arrives broken. How is this packaged?** A: This flask is packed in reinforced packaging with custom-fit foam to prevent movement during transit. In the rare event of damage, please let us know immediately for a hassle-free replacement—no return of the broken glass is required. ## Customer Reviews ### ⭐⭐⭐⭐⭐ The BEST !! *by B***R on August 7, 2019* Laboy is absolutely the best lab glass Ive ever held in my hands, let alone had the pleasure to work with. Its thick and beefy and will stand up to whatever you want to use it for. You wont go wrong with this company. It does take about a month to get to you since it comes from Beijing China, but its well worth the wait. ### ⭐⭐⭐⭐⭐ Arrives faster than predicted, seems perfect *by L***I on August 7, 2018* Exactly what I wanted. Also quite rugged — didn't break when I dropped it. Ground-glass joints precisely fit other Laboy items. --- ## 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.th/products/74736604-laboy-glass-50ml-heavy-wall-pear-shaped-flask-with-24](https://www.desertcart.co.th/products/74736604-laboy-glass-50ml-heavy-wall-pear-shaped-flask-with-24) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-06-13*