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_5L New DEVEX gas sampling bags with PTFE dual-valve, 5L Price on request U-CENKIT Starter Kit: Centri booster pack (DiffLok caps and O-rings) Price on request T-TO15-KXR Focusing trap, Trace TO-15, for TT24-7 with Kori-xr Price on request