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Vac-Ring Filter Seal
Manufacturer: Bel-Art Products
Family
Part #: BEL TSI-H389590000-1
The Vac-Ring™ seal fits B√ºchner funnel stems and seals off the filter flask mouth to prevent air leaks during vacuum filtration. The tapered bore fits funnel stems up to 22mm (7/8") diameter. Made of black neoprene synthetic rubber, the 7mm (3") O.D. ring also supports standard funnels on beakers.