Cole-Parmer Lab-Grade Glass Dewar Flask - 1000mL Capacity With Vented Polyethylene Stopper

Lab professionals and researchers, this Cole-Parmer Dewar flask is exactly what you need for handling temperature-sensitive materials and samples. The 1000mL capacity is perfect for most lab applications - large enough to be useful but not so huge that it's cumbersome to handle. The lab-grade glass construction provides excellent thermal properties while maintaining clarity so you can easily see your contents. The vented polyethylene stopper is a really thoughtful feature - it allows pressure equalization while still keeping contaminants out, which is crucial when you're dealing with volatile materials or temperature changes. Measuring about 13.3 inches tall by 11.9 inches deep, this Dewar has a substantial presence on your lab bench without dominating your workspace. The quality is exactly what you'd expect from Cole-Parmer - the glass is uniformly thick, the rim is smoothly finished, and the overall construction feels durable enough for daily lab use. Whether you're storing liquid nitrogen, dry ice with solvents, or any other cryogenic materials, this Dewar provides reliable thermal insulation and containment. The vented stopper design means you don't have to worry about pressure buildup during temperature changes, which is a safety feature you'll appreciate. It's also versatile enough for general lab use as an insulated container for various experiments and procedures. If you've been dealing with inadequate storage solutions for temperature-sensitive materials, this 1000mL Dewar flask delivers the professional performance and reliability that serious lab work demands. The build quality justifies the investment for anyone who needs dependable thermal containment on a regular basis.