Description General description Useful for drying air-sensitive compounds with inert gas or as a pressure filter funnel. The threaded top connection provides a wide opening for easy access to contents and provides a positive connection without the use of expensive pinch clamps. Funnels are heavy wall throughout with a coarse fritted disc. Supplied complete with fritted funnel and top inlet assembly. Legal Information Aldrich is a registered trademark of Sigma-Aldrich Co. LLC