"Edwin Pawlowski" wrote

"MaxAluminum" wrote in message
I suggest you get a model that uses the standard size filters (11.5"
I
think). This way you can buy filters from different sources. You
want
two cartridges so you can have a prefilter and a final that does
something specific for your water source, such as heavy metal or
bio.

The wound type filters are universal. The problems is only between the
GAC1-ss and the Insta Pure housing. they are the same length. Most
filters
are hollow core. These are not and the outlet in the top of the
housing is
longer than the depth of the recess in top of the Omni cartridge. The
Insta-Pure IR-10 does not need a pre filter as it is part of the
cartridge.
Ed

Those makes are proprietary equipment, not industry standard. Any
independent water treatment dealer has equal or higher quality
cartridges at less cost that in many installations last longer due to
them being larger capacity wise.

Combination cartridges, such as 'taste and odor' with sediment outside
the carbon are not near the filtration of two separate cartridges.
Cartridges come in two types. Nominal and absolute. Nominal uses the
build up of 'sediment' (progressive) to reach it's rating and when the
surface and just below becomes blocked the filter has to be replaced.
Absolute cartridges filter through all but to the core.

Gary
Quality Water Associates