The Water Factory SQC-PRO drinking water system comes included with the necessary three filters.

SQC-PRO filters should be changed every six months or at least within a year.  Depending on your water quality, they may need to be changed sooner.  Filters generally get dirty and should be replaced in order to keep your membrane working properly, and keep cleaning contaminants out of your drinking water. 

Filter set includes:
(1) 47-55702G2--Sediment
(1) 47-55704G2--Sediment/Carbon 
(1) 47-55710G2--Post Carbon         

This set of filters for the SQC-PRO should be replaced once every 6 months to a year. 

Membrane is not included in this set, you change membrane every 3 years