PTFE Beaker Back Catalog number: A135-25 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8700B-17 200mm Sieve. 53micron Price on request SSS-888 Sterile Bag 254 * 382. Box of 1000 Price on request 8785B-75 Blue Scraper box of 100 Price on request