NQA
European Commission project  for your
afm logo of dryden aqua active filter media

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Environmental & sustainable water treatment to save the planet
Trade marked and Patented
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Large seawater lagoons and lido systems now possible with the minimum of filtration when ACO, NoPhos and APF products are used to treat the water.   Perfotmance factor of public swimming pool systems reduced to less than 2 giving an 80% to 90% reduction in chlorine consumption.
Filtration Media Index 
DFM
denitrification media		MagpHlow catalyst,
manganese dioxide		ammosorb  Zeolite ammonium filtration and stabilisationActivated carbonAFM 
Catalyst manganese