Watts Premier ST6DM 6-Stage RO System (521934)
Reverse Osmosis Systems
Watts Premier ST6DM (521934) 6-Stage RO Replacement Filters
Unike traditional RO systems, this Watts system features two membranes that need replacing every 24 months. Three pre-filters also hang down in standard, 10" filter housings and a GAC post-filter sits on top of the two membranes. See below for the correct replacement filters and parts.
Replacement Filter Info
Sediment Filter (93023) - Replace every 6-12 months or as needed
Carbon Block Filter (OMB934-5M) - Replace every 6-12 months or as needed
Carbon Block Filter (OMB934-5M) - Replace every 6-12 months or as needed
RO Membrane TFC 75 GPD (555693-00) - Replace every 24 months or as needed
RO Membrane TFC 75 GPD (555693-00) - Replace every 24 months or as needed
Inline Carbon Filter (CL10ROT33-BB) - 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.