Description
Product Overview
The HUAOU 40mm lab funnel is constructed from 3.3 mm borosilicate glass, a material renowned for its low thermal expansion, high temperature tolerance, and superior chemical erosion resistance. Measuring 40mm in diameter and 90mm in height, the funnel features a smooth, flat surface with a shrink‑fit design that facilitates effortless handling and precise liquid or powder transfer. Each set includes two identical funnels, ensuring you have a backup for continuous laboratory work.
Usage
Designed for scientific environments, these mini funnels excel in tasks such as transferring reagents, decanting solvents, and adding powders to narrow‑bore containers. Their compact size makes them perfect for benchtop applications, chromatography sample preparation, and small‑scale synthesis where space is limited. Researchers, technicians, and students alike benefit from the reliable flow control and ease of cleaning provided by the glass construction.

Why Choose Us
HUAOU combines premium borosilicate material with meticulous manufacturing to deliver funnels that resist cracking under thermal stress and withstand aggressive chemicals. Each funnel undergoes strict quality inspection to guarantee dimensional accuracy and a flawless interior surface, reducing the risk of contamination. Our commitment to customer satisfaction includes responsive support and a hassle‑free replacement policy for any damaged items.
Key Features
- Durable 3.3 mm borosilicate glass resists heat and chemicals
- Compact 40mm diameter fits tight laboratory openings
- Smooth flat design ensures controlled, spill‑free pouring
- Easy to clean and sterilize for repeated use
- Package includes two funnels for convenience and backup
FAQ
What temperature range can the funnel withstand?
The borosilicate glass can safely handle temperatures from -196°C up to 500°C, making it suitable for most laboratory heating and cooling applications.
Can the funnel be used with corrosive chemicals?
Yes, the glass material offers excellent resistance to acids, bases, and organic solvents, ensuring longevity even with aggressive reagents.
How do I clean the funnel after use?
Rinse with distilled water, then use a mild detergent or laboratory glassware cleaner. For stubborn residues, soak in a suitable solvent and rinse thoroughly.
Is the funnel compatible with standard laboratory glassware?
The 40mm opening fits most standard bottles, vials, and containers used in chemistry and biology labs.
What should I do if the funnel arrives damaged?
Contact our customer service within 48 hours of receipt with photos of the damage, and we will arrange a replacement or refund promptly.








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