Tedlar® PVF Sampling Bags PTFE On/Off valve, 1,6L Back Catalog number: TDLC31Z_1.6L Availability: In the manufacturer's stock Price on request - + Recommended P-CP020 O-Rings, 23mm × 3mm i.d.,pk 20 Price on request NDV32_2L New DEVEX gas sampling bags with PTFE dual-valve, 2L Price on request P-00001 VOC-Mole assembly, 230mm,pk 1 Price on request