Cover for PTFE Beaker Back Catalog number: A135-5C Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8700B-17 200mm Sieve. 53micron Price on request A106-20 Micro Spatula. 316L stainless steel Price on request 8700S-15 200mm Sieve. 90micron Price on request