Reverse osmosis replacement match
iSpring 6-stage alkaline RO three-year replacement set
Part F28K75 for select iSpring filtration systems, including RCC7AK, RCC7P-AK, RCC7PAK.
F28K75 fit summaryThis larger supply set is intended for 6-stage alkaline RO configurations. Confirm the 75-GPD membrane capacity and stage count before ordering.
Buy NowCompatible systems in our guide
RCC7AKRCC7P-AKRCC7PAK
Replacement guidance
Three-year staged supply set; replace each component on its own 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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