Cover for PTFE Beaker Back Catalog number: A135-500C Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8700B-11 200mm Sieve. 180micron Price on request A356-275 Tablet CountingTriangle. 316L ss. 275mm Price on request 8700B-19 200mm Sieve.25micron Price on request