Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: POL32_2L Availability: In the manufacturer's stock Price on request - + Recommended T-8MAT Materials emissions cold trap, TT24-7 Price on request M-DSKPF Sample disc, 1.0mm thickness, PTFE,pk 6 Price on request M-SPC05-120 Collar spacer, alum 5mm, for M-CTE120I,pk 6 Price on request