Cover for PTFE Beaker Back Catalog number: A135-500C Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8700B-15 200mm Sieve. 90micron Price on request 8700B-14 200mm Sieve. 106micron Price on request 8700B-07 200mm Sieve. 500micron Price on request