Tedlar® PVF Sampling Bags PTFE On/Off valve, 1,6L Back Catalog number: HEDTDLC31Z_1.6L Availability: In the manufacturer's stock Price on request - + Recommended C-CL100 Penclips, pk100 Price on request C-VAC-FULL-ARR-KI Vacuum SPME Arrow Full Starter Kit Price on request P-00030 VOC-Mole assembly, 830mm,pk10 Price on request