MSI FB2013-11TF

Our filters are cut and folded by a precision machine in a humidity controlled environment -- this offers a clean cut without any human handling or contamination. Our MSI Trifold Filters are nested into protective, but loose sleeves, so all the filters come out usable without any bends, folds, or waste that comes with tight vacuum packaging. For use with agriculture and soil testing. 

Ahlstrom Grade 642 filtration paper has finer particle retention with higher absorption than Grade 601 but with slightly lower filtration speed (medium speed). It is used in general laboratory applications to retain particles above 2µm in size. Grade 642 is also found in agricultural and environmental laboratories for plant growth trials, soil testing, and air analysis for monitoring specific contaminants and in the filtration of organic and sulfide precipitates.