Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 2L Back Catalog number: TDL31_2L Availability: In the manufacturer's stock Price on request - + Recommended U-RACK02 Maxi Rack (1 L to 6L canisters) Price on request POL32_2L Polyester gas sampling bag with PTFE dual-valve, 2L Price on request P-FORMR Brass impact former Price on request