Devex Gas sampling bags 5L, PP screw cap valve, 3/16'' OD (4.76mm) Back Catalog number: HEDDEV71_5L Availability: In the manufacturer's stock Price on request - + Recommended TDL32_2L Tedlar PVF Gas Sampling Bag with PTFE dual-valve, 2L Price on request M-MCAL20 Disposable dish, alum, 20mL,pk100 Price on request U-COV35 O-Ring, low-emission, size 035,pk10 Price on request