100 * 100mm PTFE (Teflon) Back Catalog number: 8644T-100 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8700B-04 200mm Sieve. 850micron Price on request 8644PP-100 100 * 100mm PP Price on request 8700B-09 200mm Sieve. 300micron Price on request