--- product_id: 11012548 title: "250ml Volumetric Flask, 3.3 Boro Glass, Class A, Ground Stopper, Karter Scientific 213W6 (Pack of 2)" brand: "karter scientific" price: "189.78 DT" currency: TND in_stock: true reviews_count: 13 category: "Karter Scientific" url: https://www.desertcart.tn/products/11012548-250ml-volumetric-flask-3-3-boro-glass-class-a-ground store_origin: TN region: Tunisia --- # airtight ground glass stopper 3.3 borosilicate glass durability ±0.15ml precision tolerance 250ml Volumetric Flask, 3.3 Boro Glass, Class A, Ground Stopper, Karter Scientific 213W6 (Pack of 2) **Brand:** karter scientific **Price:** 189.78 DT **Availability:** ✅ In Stock ## Summary > ⚗️ Elevate your lab game with precision that professionals trust! ## Quick Answers - **What is this?** 250ml Volumetric Flask, 3.3 Boro Glass, Class A, Ground Stopper, Karter Scientific 213W6 (Pack of 2) by karter scientific - **How much does it cost?** 189.78 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/11012548-250ml-volumetric-flask-3-3-boro-glass-class-a-ground) ## 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 - • **Sealed for Success:** Ground glass stopper guarantees airtight sealing, preserving sample integrity every time. - • **Precision Perfected:** Class A accuracy with ±0.15ml tolerance ensures your experiments never miss the mark. - • **Trusted & Certified:** Meets ASTM and ISO standards, giving you confidence in every measurement. - • **Effortless Stability:** Flat bottom design offers unmatched stability on any lab surface, reducing spills and errors. - • **Lab-Grade Durability:** Crafted from premium 3.3 borosilicate glass for superior chemical resistance and longevity. ## Overview The Karter Scientific 250ml volumetric flask is a Class A, high-precision lab essential made from durable 3.3 borosilicate glass. Featuring a flat bottom for stability and a ground glass stopper for airtight sealing, it meets rigorous ASTM and ISO standards to deliver ±0.15ml accuracy. Perfect for professionals demanding reliable, repeatable measurements in their scientific work. ## Description Karter Scientific Class A Volumetric Flasks are manufactured from high quality inert 3.3 borosilicate glass and meet the tolerances requirements as established by ASTM E-694 - ASTM E-542 - and ASTM E-288. Flat bottom. Volumetric flasks provide improved lab convenience, broad selection and precise volume measurement. Accuracy limits conforms to ISO 1042 Laboratory Glassware-One mark volumetric flasks. With one permanent circular mark. Printed with fused-on enamel color, resistant to most acid and alkaline solutions. Calibration is based on the poured in volume ("In") at a +20°C reference temperature. Review: Exactly as displayed - Perfect. Review: Well made, and accurate measurement. - This is a well made volumetric flask that accurately measures 10mL. Compared to purchasing at science supply shops, their price is reasonably good. ## Features - Class A - O.D. x Height(mm): 81 x 225 - Tolerance(+/-ml): 0.15 - Flat Bottom - Ground Glass Stopper ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B006UKI5A6 | | Best Sellers Rank | #55,081 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Lab Volumetric Flasks | | Bottom Shape | Round | | Brand Name | Karter Scientific | | Capacity | 250 Milliliters | | Customer Reviews | 4.5 4.5 out of 5 stars (175) | | Graduation Interval | 0.15 Milliliters | | Manufacturer | Karter Scientific | | Material Type | Borosilicate Glass | | Specification Met | Astm | | UPC | 817556011493 | ## Product Details - **Bottom Shape:** Round - **Brand:** Karter Scientific - **Capacity:** 250 Milliliters - **Graduation Interval:** 0.15 Milliliters - **Material:** Borosilicate Glass ## Images ![250ml Volumetric Flask, 3.3 Boro Glass, Class A, Ground Stopper, Karter Scientific 213W6 (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/517sC+UQ+2L.jpg) ![250ml Volumetric Flask, 3.3 Boro Glass, Class A, Ground Stopper, Karter Scientific 213W6 (Pack of 2) - Image 2](https://m.media-amazon.com/images/I/51BYpB97vcL.jpg) ![250ml Volumetric Flask, 3.3 Boro Glass, Class A, Ground Stopper, Karter Scientific 213W6 (Pack of 2) - Image 3](https://m.media-amazon.com/images/I/41UjAshVrbL.jpg) ![250ml Volumetric Flask, 3.3 Boro Glass, Class A, Ground Stopper, Karter Scientific 213W6 (Pack of 2) - Image 4](https://m.media-amazon.com/images/I/41fploq5A-L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: What is the stopper size?** A: The stopper size is 12/18 Ts medium. **Q: Do they come with the certificate?** A: Hello, No, I'm sorry they do not. Customer Service **Q: What are the dimensions** A: Height is 7.5 inches, base is 2.5 inches. **Q: what is the diameter of the flask at the widest point?** A: 3.95 inches is the outside diameter of the flask at its widest point, as measured by digital calipers. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Exactly as displayed *by X***E on January 24, 2026* Perfect. ### ⭐⭐⭐⭐⭐ Well made, and accurate measurement. *by K***G on August 25, 2024* This is a well made volumetric flask that accurately measures 10mL. Compared to purchasing at science supply shops, their price is reasonably good. ### ⭐⭐⭐⭐⭐ Good size *by M***U on February 8, 2026* Nice size and worked for what I needed. ## Frequently Bought Together - 250ml Volumetric Flask, 3.3 Boro Glass, Class A, Ground Stopper, Karter Scientific 213W6 (Pack of 2) - VIVOSUN Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Pool and Aquarium, Yellow Blue, UL Certified - moveland Plastic Graduated Cylinders and Beakers with 5 Pipettes, 10ml 25ml 50ml 100ml Cylinders, 50ml 100ml 250ml 500ml 1000ml Beakers, Ideal for DIY and Kids Science Lab --- ## 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.tn/products/11012548-250ml-volumetric-flask-3-3-boro-glass-class-a-ground](https://www.desertcart.tn/products/11012548-250ml-volumetric-flask-3-3-boro-glass-class-a-ground) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-30*