50 * 50mm PS Back Catalog number: 8644PS-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended SSS-888A Sterile Bag 140 * 299mm. Box of 1000 Price on request 8700B-07 200mm Sieve. 500micron Price on request 8700B-16 200mm Sieve. 75micron Price on request