50 * 50mm PS Back Catalog number: 8644PS-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended SSS-888B Sterile Bag 254 * 382. Box of 1000 Price on request 8644T-100 100 * 100mm PTFE (Teflon) Price on request 8370H-200S 200mm dia Funnel box of 10 Sterile Price on request