Teflon Bag, On-Off Valve (0.5L) Back Catalog number: TE-22 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended C-BIO02-100 BioVOC-2 Breath Sampler, pk 100 Price on request GB37C Band, 37mm Shrink, Clear 100/Pack Price on request GCS25455-50 Cassette, 25mm, Classic Style TEM, 0.45µm, MCE, 50 Price on request