50 * 50mm HDPE Opaque Back Catalog number: 8644H-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8644AB-50 50 * 50mm Borosilicate glass (pyrex) Price on request 8700B-13 200mm Sieve. 125micron Price on request 8601S-20 Stainless Sample splitter. 20mm wide. 12 slots Price on request