Teflon Bag, On-Off Valve (1.2L) Back Catalog number: TE-21 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GF47080 Filter, MCE, 0.8µm, 47mm, 100/Pack Price on request GFPC0237 Filter, 37mm, 0.2µm, Polycarbonate, Plain White, 1 Price on request C-BIO02-10 BioVOC-2 Breath Sampler, pk 10 Price on request