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 P-CPU10 Unions, for VOC-Mole cap assembly,pk10 Price on request U-T15ATA-2S UNITY 2 Cold trap, TO-15/TO-17 Air Toxics C2/3 Price on request M-MCHOR O-Ring, micro-chamber pan seal, for M-CTE120I,pk 6 Price on request