Teflon Bag, Septum Valve (50L) Back Catalog number: TE-28 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 810-0101-02 GilAir-5 Basic (ATEX), Pump only Price on request 811-0944-02-R GilAir Plus, BlueTooth Upgrade DL (board exchange) Price on request 811-9901-01 Gilian Bag Sampling Kit with Jar (Use SC-1 or SC-3 Sampling Bag) Price on request