Tedlar PVF Gas Sampling Bag with PP valve, 5L, 3/16'' OD (4.76mm) Back Catalog number: TDL71_5L Availability: In the manufacturer's stock Price on request - + Recommended M-SPC15-120 Collar spacer, alum 15mm, for M-CTE120I,pk 6 Price on request M-CHCT-250 Calibration tool for M-CTE250I, pk 4 Price on request U-T18325-2S EPA 325 cold trap, UNITY 2/xr and TD-100/xr Price on request