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 U-T6SUL-2S Sulphur/labile cold trap, Price on request NDV31_5L DEVEX sampling bags with PTFE straight and septum valve with OD 6mm, 5L Price on request C-VAC-PIN Vacuum closure Pin Price on request