50 * 50mm PTFE (Teflon) Back Catalog number: 8644T-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8644S6-100B 100 * 50mm Stainless 316 Bright Polish Price on request 8700B-02 200mm Sieve. 2mm Price on request 8700S-16 200mm Sieve. 75micron Price on request