50 * 50mm PTFE (Teflon) Back Catalog number: 8644T-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8700S-03 200mm Sieve. 1mm Price on request 8702A-1 Thermometer with stainless probe Price on request 8700B-17 200mm Sieve. 53micron Price on request