Devex bag with PC valve, 0,5L Back Catalog number: DEV21_0.5L Availability: In the manufacturer's stock Price on request - + Recommended TDL71_5L Tedlar PVF Gas Sampling Bag with PP valve, 5L, 3/16'' OD (4.76mm) Price on request RMK-0020 Routine Maintenance Kit: Tube conditioner (TC-20) Price on request 1235 BALLOONS FOR GAS SAMPLING, 8Liters Price on request