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 M-DSKPF Sample disc, 1.0mm thickness, PTFE,pk 6 Price on request T-9GPC General purpose carbon cold trap, TT24-7 Price on request P-CPU10 Unions, for VOC-Mole cap assembly,pk10 Price on request