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 T-7CUS cust packed cold trap, TT24-7 Price on request U-COV06 O-Ring, Size 006, pk/10 Price on request P-00001 VOC-Mole assembly, 230mm,pk 1 Price on request