100S manufactured by NSA was one of their top selling inline water filters. The
unit was comprised of GAC (granular activated carbon) and
Silver impregnated media. The GAC & Silver impregnated media removed chemicals and organics such as chlorine, pesticides, detergents, bad taste, also while reducing sediment,
discoloration and inhibiting bacteria growth. This unit was discontinued effective 1/1/2008 . It is
highly recommended if you own one of these units to uninstall it and purchase the
newly upgraded unit called the 100US sold by WM Filter. While the NSA 100S
water filter was an excellent design and water filter WM Filter has taken
what NSA created and improved upon the design by replacing the silver
impregnated media with KDF. KDF Media
is used to replace silver-impregnated systems. Silver is toxic, KDF Process
Media are not. Silver must be registered with the EPA as a toxic pesticide, KDF
Process Media does not.
of KDF Process Media
keeping the same design as the NSA 100S under-sink water filter and replacing
the media with KDF the unit is now much more effective
in removing chemicals as well as being much safer. The unit can easily be
changed out for the newer 100US.
As of 2007 Water Marque has taken over ALL Air and WATER replacements for NSA.
You can find the replacement model for the NSA 100S by clicking the product below