This 4 stage RO system uses sediment and carbon pre-filters to reduce sediment, chlorine and chlorine by-products before the 9 GPD membrane filters out impurities larger than .001 microns. The carbon post filter treats for taste and odor. Due to a discontinued membrane, we recommend switching to the PuROTwist PT4000T50-SS-RK RO Retrofit Kit for continued use. This allows for continued use the tank and faucet and for an upgraded membrane to be used for updates in filtration technology. Please check your system as a different retrofit kit may be required.
Replacement Filter Info
Sediment Filter
(41400008) - Replace
every 6-12 months or as needed
Carbon Block
Filter(41400009) – Replace
every 6-12 months or as needed
RO Membrane TFC 9 GPD (3301071
*Discontinued) – Replace every 24 months or as
needed
Carbon Block Filter (41400009) – Replace every 6-12 months or as
needed
Helpful Filter Information
Not all filters have the same replacement schedule. Replace the RO membrane filter every two
years. Replace all other filters every 6-12 months. Help keep your system sanitary by never
using filters longer than 12 months, except the RO membrane filter, regardless of how much
water you use.
Filter Replacement Schedule
We’ve taken the guesswork out of replacing your filters. Begin a filter
replacement cycle by replacing all filters on your system (Filter Kit
"YSM"). The following year, or sooner if recommended by the manufacturer, replace
all filters except the RO membrane (Filter Kit
"YS"). Repeat this cycle by following the helpful diagram below.