Teflon Bag, On-Off Valve (0.5L) Back Catalog number: TE-22 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-0902-EU-R GilAir-Plus Data Logging Single Starter Kit, Euro Price on request 400692 Battery Pack, NiMH for old style Gilibrator Price on request 850190M Manual, Gilibrator-2 Price on request