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 FLD32_2L Fluode gas sampling bag with PTFE dual-valve, 2L Price on request C-EZVOCAK Easy-VOC accessory pack Price on request U-HSVB-20 Replacement Vial Block, for HiSorb Agitator Price on request