SYLICON CONICAL STOPPER - 37x28mm, h 38mm Back Catalog number: 3811 Availability: In the manufacturer's stock Price on request - + Recommended 1726 BECHER TPX SERIGR,, 2000ml Price on request 2570 GRADUATED CYLINDER TPX SERIGR,, 10ml Price on request 646 WATCH GLASSES PTFE, 126mm Price on request