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 U-T12ME-2S Materials emissions, C4 - C32, cold trap Price on request U-T4WMT-2S Water Management, ethane - C20, cold trap Price on request M-MCAL50 Disposable dish, alum, 50mL,pk100 Price on request