SYLICON CONICAL STOPPER - 14x11mm, h 18mm Back Catalog number: 3803 Availability: In the manufacturer's stock Price on request - + Recommended 3833 CONICAL STOPPER 1 HOSE - 48x37mm, h 50mm Price on request 438 BUCHNER FUNNELS, O 55mm Price on request 3820 CONICAL STOPPER 1 HOSE - 12x9mm, h 18mm Price on request