This our high quality, compatible replacement filter set for the Rainsoft 9591 Filter Set.  Most reverse osmosis filter sets should be changed once per year.  Depending on your water quality, 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. 

A sanitizer kit is also available as an add-on.  When you change your filters you should sanitize your systems before replacing them, to help keep the system clear of any harmful bacteria.

Filter set includes:

(1) 5 Micron Sediment Cartridge Filter
(1) 10 Micron Carbon Block Cartridge Filter 
(1) 10" Inline GAC Cartridge Filter (1/4" Female with 2-3/8" fittings and 2-1/4" Fittings)