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 1235 BALLOONS FOR GAS SAMPLING, 8Liters Price on request H1-AXAAC HiSorb probe, inert, standard, pk/6 Price on request U-COV10 O-Ring, low-emission,size 010, pk10(e2/e3 systems) Price on request