36 GPD Reverse Osmosis Membrane – Compatible with Culligan AC-30 & AC-15
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Designed to fit select Culligan reverse osmosis systems, including the AC-30 and AC 15 It is the core filtration component of the system, responsible for removing dissolved solids and contaminants at the molecular level.
Installed after the sediment and carbon stages, the membrane reduces total dissolved solids (TDS) and improves overall water purity before final polishing.
What the RO Membrane Reduces
Total Dissolved Solids (TDS)
Heavy metals
Dissolved salts
Fluoride
Nitrates and other inorganic contaminants
Why the RO Membrane Matters
The RO membrane is the heart of any reverse osmosis system. A properly functioning membrane:
Delivers low-TDS, purified water
Determines overall system performance
Works in conjunction with pre-filters to maintain efficiency
Replacing the membrane at the correct interval ensures consistent water quality and protects downstream components.
System Compatibility
This 36 GPD RO membrane is compatible with Culligan reverse osmosis systems that use the same membrane size and flow rating, including:
Culligan AC-30
Culligan AC-15
Equivalent / Replacement Part Numbers
This membrane is commonly used as a replacement for the following RO membrane models:
TFM-36
TFM-36A
Culligan 01-0074-02
Culligan 01-0074-03
Culligan 01007402
Culligan 01007403
GE Desal 1224436
GE Desal AG1812TJF
GE Desal AG1812TJR
GA 323035
Applied Membranes M-T1812A36
Applied Membranes M-T1812A36-CUL
Compatibility Notice:
This is a compatible replacement membrane manufactured by LiquaGen. It is not an OEM product and is not manufactured, endorsed, or affiliated with any original equipment manufacturer.
Specifications
Product Type: Reverse osmosis membrane
Flow Rate: 36 gallons per day (GPD)
Filtration Technology: Thin-film composite (TFC)
Application: Under-sink reverse osmosis systems
Typical Rejection Rate: High TDS reduction when used with proper pre-filtration
Recommended Replacement: Every 24–36 months, depending on water quality and usage
When to Replace
Replace every 2–3 years under normal conditions
Replace sooner if TDS reduction drops or water taste changes
Maintaining pre-filters regularly will help extend membrane life.
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