Gucko Rubber Conical Gasket Stopper Ring No.8

Chem Lab Supplies Gucko gasket ring used to contain pressure by tightening filter flask & funnel together during lab vacuum filtration process.The rubber conical stopper No.8 is used with Buchner Flask size 10lt. Great for light duty vacuum applications such as vacuum filtration and liquid transfer.

Conical gaskets are generally used in place between filter funnel and filter flask