The air valve blocks harmful vapours and ensures safe pressure equalisation in the storage tanks. For PFAS analysis of polyfluorinated chemicals according to DIN 38407-42/ DIN 38414-14.
POA means "Price On Application". Items displaying POA instead of the sell price do so for a number of reasons, not least because we anticipate some additional information is required in order to supply the most suitable options/configuration to each individual customer.