Ceramic Buchner funnel is a type of filtration apparatus used in laboratory settings. It consists of a conical-shaped porcelain funnel with small perforations (or holes) at the bottom, and a long stem that can be attached to a vacuum source. 

* Premium Material: Made of porcelain, a type of ceramic material known for its high temperature resistance and chemical inertness. Porcelain funnels are ideal for applications that involve hot liquids or corrosive substances. 

* Smooth surface: acid and alkali resistant, resistant to most chemicals and heat; commonly used in laboratory vacuum filtration experiments Design: With fixed perforated plate, glazed on inner and outer surface with exception of rim