Filter flask stoppers suitable for Buchner funnel.
I purchased some time ago white rubber stoppers with a 12mm hole (Height 300mm, Top 350mm & Bottom 300mm) I have exhausted all my catalogues and can nolonger find them.
Does anybody have any idea where I might purchase them.
I recently purchased guko rubber gaskets from Science Supply, cat. no. 2920227.
They are similar in size to the ones you have although the hole is slightly larger and tapered to suit a variety of funnels. I originally bought them to use with glass sintered crucibles but they can also be used with the buchner funnel.