Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: POL32_2L Availability: In the manufacturer's stock Price on request - + Recommended 1230 BALLOONS FOR GAS SAMPLING, 1Liter Price on request TDL71_0.5L Tedlar PVF Gas Sampling Bag with PP valve, 0,5L Price on request 632443607250 Vzorkovnice na plyny 7501/250ML Price on request