50 * 50mm Borosilicate glass (pyrex) Back Catalog number: 8644AB-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8644AB-100 100 * 100mm Borosilicate glass (pyrex) Price on request A135-100C Cover for PTFE Beaker Price on request 8700B-17 200mm Sieve. 53micron Price on request