Multi-layer gas sampling bags, PP valve (4.76mm), 1L Back Catalog number: HEDMBT71_1L Availability: In the manufacturer's stock Price on request - + Recommended M-MCTL250 Sample Pan Removal Tool, for high temp Micro-chamber Price on request C-HSPVLP-20 HiSorb septum plug, pk 20 Price on request P-00030 VOC-Mole assembly, 830mm,pk10 Price on request