Teflon Bag, On-Off Valve (1.2L) Back Catalog number: TE-21 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 783-0008-04 Battery Pack, Replacement BDX II, NiMH Price on request 910-0910-EU-R GilAir-Plus Data Logging Single Starter Kit, Bluet Price on request GFPC447 Filter, 47mm, 0.4µm, Polycarbonate, Plain White, 1 Price on request