Tedlar® PVF Sampling Bags PTFE On/Off valve, 1,6L Back Catalog number: TDLC31Z_1.6L Availability: In the manufacturer's stock Price on request - + Recommended M-SPC05-250 Collar spacer, alum 5mm, for M-CTE250I,pk 4 Price on request TDL71_6L Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Price on request TDL32_2L Tedlar PVF Gas Sampling Bag with PTFE dual-valve, 2L Price on request