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3-year bulk reverse osmosis replacement filter kit from LiquaGen is designed for long-term maintenance of compatible Culligan-style reverse osmosis systems. The kit includes all required filters and membranes to support approximately three years of normal household use, helping reduce service frequency while maintaining consistent water quality.
Ideal for homeowners who prefer fewer replacements, lower long-term costs, and uninterrupted system performance.
What’s Included (3-Year Supply)
(6) Sediment Pre-Filters – 5 Micron
Compatible replacement for HED-SED-AC5
Removes sand, rust, silt, and suspended particles
Material: Polypropylene
Micron Rating: 5 micron (nominal)
Dimensions: 12" × 2"
Operating Temperature: 48°F – 145°F
(6) Carbon Block Pre-Membrane Filters
Compatible replacement for HDG-CB-AC10
Reduces chlorine, taste, odor, sediment, and organic contaminants
Protects the RO membrane from chlorine damage
Manufactured using high-purity, acid-washed activated carbon
High dirt-holding capacity with low pressure drop
(1) Reverse Osmosis Membrane – 36 GPD (TFC)
Thin-Film Composite (TFC) membrane
Designed for systems requiring a 36 GPD membrane
Reduces Total Dissolved Solids (TDS) and dissolved contaminants
Compatible RO System Models:
AC-15
AC-30
H83
H83S-R
(3) Inline Post-Carbon Polishing Filters
Size: 2" × 6"
Connection: 3/8" Quick Connect
Final polishing stage
Improves taste and odor at the faucet
Why Choose a 3-Year Supply Kit
Covers approximately 36 months of normal household use
Reduces maintenance reminders and repeat orders
Ensures consistent system performance over time
Cost-effective compared to purchasing filters individually
Ideal for rental properties or long-term homeowners
Recommended Replacement Schedule
Sediment & carbon filters: Every 6–12 months
Inline post-carbon filter: Every 12 months
RO membrane: Once during the 3-year cycle (24–36 months)
Actual replacement intervals may vary based on water quality and usage.
Application
Under-sink reverse osmosis systems
Full long-term maintenance solution
Compatible with systems using the same filter and membrane specifications
Compatibility Notice
This is a compatible replacement filter kit manufactured by LiquaGen. It is not an OEM product and is not manufactured, endorsed, or affiliated with any original equipment manufacturer. Brand names and model numbers are used solely to indicate compatibility.
(951) 530-4020






