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-SPC05-120 Collar spacer, alum 5mm, for M-CTE120I,pk 6 Price on request U-T15ATA-2S UNITY 2 Cold trap, TO-15/TO-17 Air Toxics C2/3 Price on request M-TCN04 O-Ring, size 007, and spacer,pk 6 Price on request