Description
Replacement Filters for Routine RO Maintenance
This PureT replacement filter set provides the primary prefiltration and post-filtration cartridges used in compatible traditional reverse osmosis drinking-water systems.
Replacing filters at the recommended intervals helps protect the RO membrane, maintain water quality and keep the system operating efficiently.
WHAT’S INCLUDED
1 × Spun Polypropylene Sediment Filter
5 micron
Helps capture sediment, dirt, rust and suspended particles before they reach the carbon filters and RO membrane.
2 × Coconut Shell Activated Carbon Block Filters
5 micron
Help reduce chlorine, taste and odor while protecting the RO membrane from chlorine exposure.
1 × Inline Coconut Shell Carbon Post Filter
Provides final taste and odor polishing after water leaves the RO storage tank and before it reaches the drinking-water faucet.
RO MEMBRANE NOT INCLUDED
Please Note: Reverse osmosis membrane is sold separately and is not included with this filter set.
FILTER STAGES
For a conventional 5-stage RO system, these filters would typically correspond to:
Stage 1
5-Micron Sediment Filter
Stage 2
5-Micron Carbon Block Filter
Stage 3
5-Micron Carbon Block Filter
Stage 5
Inline Coconut Shell Carbon Post Filter
Stage 4, the RO membrane, is not included.
KEY FEATURES
• Four-filter replacement set
• Designed for compatible traditional under-sink RO systems
• 5-micron sediment prefiltration
• Two 5-micron coconut-shell carbon block filters
• Inline coconut-shell carbon post filter your choice of 1/4-inch or 3/8-inch quick-connect connections
• Helps maintain system performance
• Helps protect the RO membrane
• Standard replacement format for compatible conventional RO systems
• RO membrane sold separately
RECOMMENDED REPLACEMENT
For typical residential use:
Sediment Filter: approximately every 6 to 12 months
Carbon Block Filters: approximately every 6 to 12 months
Inline Carbon Post Filter: approximately every 12 months
Actual filter life depends on incoming water quality, household consumption and system operating conditions.
COMPATIBILITY
Designed for compatible conventional under-sink reverse osmosis systems using standard replacement cartridges and inline post filtration.
Before ordering, customers should verify their existing filter sizes, connections and system requirements.
Not sure which filters your RO system needs? Contact Infinite Acqua Solutions with the make and model of your system. We service and maintain many RO systems, including systems we didn’t originally install.
IMPORTANT
This replacement set does not include the reverse osmosis membrane.
If your RO membrane is also due for replacement, purchase the appropriate membrane separately or contact Infinite Acqua Solutions for help identifying the correct replacement.





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