Repalcement septum for Tedlar bag TDLC31Z Back Catalog number: TDLC-S Availability: In the manufacturer's stock Price on request - + Recommended C-TDKIT-02 Essential Automated TD Starter Kit Price on request H1-AXABC HiSorb probe, inert, short, pk/6 Price on request TDL71_6L Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Price on request