Glass Funnels
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Laboratory Glass Filtering Funnels are essential tools for smooth and efficient liquid filtration in scientific, industrial, and educational laboratories. Made from high-quality borosilicate glass, these funnels ensure chemical resistance, thermal stability, and long-lasting performance. Their sturdy design and precise stems allow secure attachment to flasks or filtration setups, ensuring safe and consistent results.
At MEDILAB, we supply a complete range of filtering funnels trusted by distributors, importers, and bulk buyers worldwide.
Types of Laboratory Glass Filtering Funnels
1. Büchner Funnel
A classic filtration funnel featuring a fritted disc at the bottom.
Ideal for:
- Filtering liquids with high solid content
- Rapid separation of precipitates
- Use in chemical, pharmaceutical, and research labs
2. Hirsch Funnel
Designed with a fritted disc and a side arm for vacuum filtration.
Ideal for:
- Small-scale filtration
- Filtration under reduced pressure
- Micro-analysis and crystallization processes
3. Büchner/Hirsch Combination Funnel
A versatile funnel that integrates features of both Büchner and Hirsch types.
Ideal for:
- Standard and vacuum filtration
- Labs requiring flexibility in workflow
4. Separatory Funnel
A premium borosilicate glass funnel fitted with a stopcock valve.
Ideal for:
- Separating immiscible liquids
- Extraction processes
- Solvent purification
Laboratory filtering funnels are widely used in:
- Chemical processing and analytical testing
- Pharmaceutical formulation and QC labs
- Food, dairy, and beverage analysis
- Biotech and environmental testing
- Academic and research laboratories
These funnels support daily lab operations such as purification, separation, extraction, and sample preparation.
To ensure efficiency and long service life:
- Always support the funnel securely during filtration.
- Use appropriate filter paper or fritted discs as required.
- Avoid sudden temperature changes to prevent glass breakage.
- Handle stopcocks and joints gently to maintain proper sealing.
Precautions for Safe Use
- Inspect the funnel for cracks or chips before every use.
- Do not apply excessive vacuum pressure beyond recommended limits.
- Ensure chemical compatibility with reagents used.
- Clean immediately after filtration to prevent residue buildup.
Why Distributors Choose MEDILAB
- Manufactured from premium borosilicate 3.3 glass
- Consistent quality suitable for bulk and OEM orders
- Competitive international pricing
- Strong export packaging
- Reliable global supply and timely delivery
