Blueline cartridges have double the
filtering power. Extensive tests have
shown that Blueline's granulated and
powdered carbon surfaces remove
dyes twice as fast as regular
cartridges. Blueline has three layers
for the best possible filtering. The
Duo-Density polyester layer traps
waste material firmly, the
impregnated carbon layer has more
adsorption area for removing
contaminants faster, The granular
carbon layer has larger pores for
trapping bigger impurities and
extended adsorption action. Triple
Pack