BUCHNER FUNNELS, O 55mm Back Catalog number: 438 Availability: In the manufacturer's stock Price on request - + Recommended 3833 CONICAL STOPPER 1 HOSE - 48x37mm, h 50mm Price on request 3821 CONICAL STOPPER 1 HOSE - 13x10mm, h 18mm Price on request 3807 SYLICON CONICAL STOPPER - 23x16mm, h 26mm Price on request