50 * 50mm PP Back Catalog number: 8644PP-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8700B-03 200mm Sieve. 1mm Price on request 8700B-18 200mm Sieve. 32micron Price on request 8644T-50 50 * 50mm PTFE (Teflon) Price on request