Reverse osmosis replacement match
APEC Ultimate 90-GPD complete 5-stage replacement set
Part FILTER-MAX90 for select APEC Water filtration systems, including RO-90, RO-PERM.
FILTER-MAX90 fit summaryAPEC lists FILTER-MAX90 for standard 1/4-inch-output RO-90 and RO-PERM systems. Systems upgraded to 3/8-inch quick-dispense plumbing use a different set.
Buy NowCompatible systems in our guide
RO-90RO-PERM
Replacement guidance
Complete staged replacement set; follow the system-specific schedule. Multi-stage systems can require different schedules for different cartridges, so use the manual rather than replacing every stage automatically at the same time.
Checks before purchasing
- Confirm the complete system model and stage count.
- Compare the installed cartridge or membrane part number.
- Confirm membrane capacity and connection style where applicable.
- Review the manufacturer’s current compatibility information.
How this entry was verified
We used the named manufacturer’s replacement information as the primary compatibility reference. Retailer descriptions are a purchasing aid, not our source of truth.
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