Teflon Bag, On-Off Valve (50L) Back Catalog number: TE-24 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-0908-EU-R GilAir-Plus Data Logging 3-Pump Starter Kit, Euro Price on request SC-4 Tedlar Bag (3L) Price on request 811-0917-01-R Replacement Screws for GilAir Plus, Pk of 25 (4-40 Price on request