50 * 50mm PTFE (Teflon) Back Catalog number: 8644T-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8700S-08 200mm Sieve. 425micron Price on request 8600M-10 Sample splitter. 10mm Price on request 8600M-40 Sample splitter. 40mm Price on request