Neoprene filter adapters are designed to fit between the filtering funnel and flask. Eliminates the boring of rubber stoppers and the difficulties of inserting and removing glass stems in stoppers.

• For use with Buchner funnels, Grooch crucibles, filter tubes, etc.
• Can be used individually or nesting with adjacent sizes
• Neoprene withstands autoclaving

Complete set includes sizes 1-7 with I.D. ranging from 17×7 mm to 75×46 mm and O.D. ranging from 21×11 mm to 86×57 mm. Wall thickness ranges from 2.0 to 5.5 mm.