Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Back Catalog number: TDL71_6L Availability: In the manufacturer's stock Price on request - + Recommended M-CHCT-250 Calibration tool for M-CTE250I, pk 4 Price on request RMK-0006HT Routine maintenance kit for M-CTE250I Price on request DEV31_5L DEVEX gas sampling bag, stopcock straight valve, 5L Price on request