Funnel has sealed-in glass fritted disc with different porosity.
- Filter paper or membranes cannot withstand the chemical attack of the filtrate
- It is constructed with heavy wall stems and the top of the funnel is beaded for additional strength
- Fine frit (4 to 5.5 µm): filtration and extraction
- Medium frit (10 to 16 µm): filtration and extraction
- Coarse frit (40 to 60 µm): gas dispersion, gas washing and absorption, coarse filtration
- Extra coarse frit (170 to 220 µm): gas dispersion, gas washing and absorption, coarse filtration