A Buchner Funnel is used for vacuum filtration.
This porcelain Buchner funnel is 90mm diameter and has a capacity of about 200 ml.
The stem tapers from about 22 mm OD at the end t30 mm OD at the cone.
The one-piece design of the porcelain 90 mm Buchner funnel is perfect for vacuum filtrations.
The filter platform has dozens of small holes (about 1/8') provide filtration efficiency.
Porcelain is durable, acid and alkali resistant, easy clean and autoclavable.
Be sure torder with 11 cm filter paper, which will need the cut down.

Laboratory Glassware School Lab Equipment Suppliers in India 

Ltekonline are the manufacturers of Buchner Funnel 90 mm Porcelain Glassware Funnels used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Laboratory Glassware for Engineering Teaching Lab in Universities