50 * 50mm Borosilicate glass (pyrex) Back Catalog number: 8644AB-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8644S6-100B 100 * 50mm Stainless 316 Bright Polish Price on request A105-70 PTFE Funnel Price on request 8700B-15 200mm Sieve. 90micron Price on request