Ideal for use where filter paper or membranes cannot withstand chemical attack of the filtrate.

• Borosilicate glass fabrication
• Fritted disc
• Beaded top rims

Funnels feature medium-walled stems and beaded top rims for extra strength.

Made from ASTM E438 Type 1 Class A borosilicate 33 expansion glass. Funnel meets federal specification DD- F -776.

These funnels are used in qualitative inorganic analysis and preparative chemistry and are resistant to corrosion and heat.