Tedlar® PVF Sampling Bags PTFE On/Off valve, 0,3L Back Catalog number: TDLC31Z_0.3L Availability: In the manufacturer's stock Price on request - + Recommended NDV32_2L New DEVEX gas sampling bags with PTFE dual-valve, 2L Price on request U-T14H2S-2S H2S cold trap, UNITY 2/xr Price on request U-COV45 O-Ring, low-emission, 5.92mm i.d. pk10 (6mm Difflo Price on request