Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: POL32_5L Availability: In the manufacturer's stock Price on request - + Recommended TDLC31Z_1.6L Tedlar® PVF Sampling Bags PTFE On/Off valve, 1,6L Price on request RMK-0027 Routine Maintenance kit, tube based systems, no co Price on request U-COV45 O-Ring, low-emission, 5.92mm i.d. pk10 (6mm Difflo Price on request