50 * 50mm PS Back Catalog number: 8644PS-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended A135-5C Cover for PTFE Beaker Price on request 8370H-200S 200mm dia Funnel box of 10 Sterile Price on request 8700B-16 200mm Sieve. 75micron Price on request