Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 5L Back Catalog number: HEDTDL31_5L Availability: In the manufacturer's stock Price on request - + Recommended U-T15ATA-2S UNITY 2 Cold trap, TO-15/TO-17 Air Toxics C2/3 Price on request C-KITME01-2S Basic material emissions starter kit Price on request U-T4WMT-2S Water Management, ethane - C20, cold trap Price on request