50 * 50mm Nylon (Polyamide) 6/6, FDA Grade, Back Catalog number: 8644N-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8644H-100 100 * 100mm HDPE Opaque Price on request 8700B-10 200mm Sieve. 250micron Price on request 8700S-13 200mm Sieve. 125micron Price on request