Teflon Bag, On-Off Valve (4.7L) Back Catalog number: TE-23 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GC7345PC Cassette, 37mm, 3 pc, 0.4µm Polycarbonate, 50/Box Price on request GF37050T Filter, PTFE with Polypropylene Backing, 0.5µm, 37 Price on request GCS25455-50 Cassette, 25mm, Classic Style TEM, 0.45µm, MCE, 50 Price on request