Tedlar® PVF Sampling Bags PTFE On/Off valve, 0,3L Back Catalog number: HEDTDLC31Z_0.3L Availability: In the manufacturer's stock Price on request - + Recommended U-T2GPH-2S UNITY 2 & TD-100 Cold trap general purpose hydrop Price on request U-COV108-H O-ring, Injector Liner, Black, High Temp, pk/1 Price on request HEDNDV32_5L New DEVEX gas sampling bags with PTFE dual-valve, 5L Price on request