Teflon Bag, On-Off Valve (4.7L) Back Catalog number: TE-23 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-0910-EU-R GilAir-Plus Data Logging Single Starter Kit, Bluet Price on request 6075-0428-R Screwdriver - Stainless Steel, Philips / Pan-Head Price on request TE-26 Teflon Bag, Septum Valve (1.2L) Price on request