50 * 50mm Borosilicate glass (pyrex) Back Catalog number: 8644AB-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended A135-10C Cover for PTFE Beaker Price on request 8644S4-100S 100 * 100mm Stainless 304 240grit Price on request 8700B-04 200mm Sieve. 850micron Price on request