Repalcement septum for Tedlar bag TDLC31Z Back Catalog number: TDLC-S Availability: In the manufacturer's stock Price on request - + Recommended TDL71_6L Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Price on request U-COV45 O-Ring, low-emission, 5.92mm i.d. pk10 (6mm Difflo Price on request TDL32_5L Tedlar PVF Gas Sampling Bag with PTFE dual-valve, 5L Price on request