200mm Sieve. 20micron Back Catalog number: 8700B-20 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8644AB-50 50 * 50mm Borosilicate glass (pyrex) Price on request 8700S-06 200mm Sieve. 600micron Price on request 8700B-06 200mm Sieve. 600micron Price on request