DEVEX gas sampling bag, stopcock straight valve, 5L Back Catalog number: HEDDEV31_5L Availability: In the manufacturer's stock Price on request - + Recommended U-T8CUS-2S cust packed cold trap, UNITY 2/xr and TD-100/xr Price on request 1233 BALLOONS FOR GAS SAMPLING, 4Liters Price on request P-CP020 O-Rings, 23mm × 3mm i.d.,pk 20 Price on request