50 * 50mm PP Back Catalog number: 8644PP-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8644AB-50 50 * 50mm Borosilicate glass (pyrex) Price on request A516-120 Sieving Tool Price on request 8700S-08 200mm Sieve. 425micron Price on request