Multi-layer gas sampling bags, PP valve (4.76mm), 1L Back Catalog number: MBT71_1L Availability: In the manufacturer's stock Price on request - + Recommended TDL71_0.3L Tedlar PVF Gas Sampling Bag with PP valve, 0,3L Price on request SERZ-1076 Spare filter assembly, ACTI-VOC Price on request 1231 BALLOONS FOR GAS SAMPLING, 1,5Liters Price on request