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RO Membranes | TFC Thin-Film Composite
The Germicidal Core of 0.0001 Micron Water Purification
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Description
Reverse Osmosis (RO) membranes are the "heart" of any pure water system, acting as a sophisticated molecular barrier. Utilizing a Thin-Film Composite (TFC) multi-layered structure, these membranes achieve an incredibly fine filtration level of 0.0001 micron—a precision that standard filters cannot match. This allows the system to expel up to 98% of dissolved salts, heavy metals, bacteria, and viruses, providing the safest possible drinking water.
Features
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High Contaminant Rejection: Effectively removes Total Dissolved Solids (TDS), Lead, Arsenic, Fluoride, and pathogens.
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TFC Technology: Built with a Polyamide layer for filtration, supported by Polysulfone and Polyester layers for maximum pressure resistance and durability.
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Versatile Capacities: Available in various GPD (Gallons Per Day) ratings to suit residential or light commercial needs.
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Universal Compatibility: Fits standard RO membrane housings used in 5-stage and 7-stage systems.
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Trusted Quality: We supply high-performance membranes from industry-leading brands including Sinoflow, Vontron, and Linki.
Selection Guide: Finding Your GPD Capacity
The GPD rating indicates how many gallons of purified water the membrane can produce in a 24-hour period under optimal conditions (25°C and 3.5Bar pressure).
| SKU | Capacity | Best For | Application |
| FM50 | 50 GPD | Standard Residential | Standard 5/7-Stage RO Systems |
| FM75 | 75 GPD | Higher Flow Residential | Large Families / Fast Tank Refill |
| FM100 | 100 GPD | High Demand | High-output home systems |
| FM400A | 400 GPD | Light Commercial | Tankless RO / Cafes (Size 3012) |
| FM400B | 400 GPD | Light Commercial | Tankless RO / Cafes (Size 3013) |
How It Works
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The Molecular Sieve: High-pressure water is forced against the semi-permeable TFC membrane. Only pure water molecules are small enough to pass through the Polyamide layer.
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The Rejection Stream: Dissolved impurities are washed away to the drain (wastewater), preventing them from ever reaching your glass.
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The Result: Ultra-pure water suitable for drinking, laboratory use, aquariums, and sensitive medical processes.
Maintenance & Service Life
To protect your membrane and ensure it lasts 1 to 3 years, you must replace your sediment and carbon pre-filters every 6–12 months. Signs it is time to replace your RO Membrane:
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Reduced Flow: The storage tank takes significantly longer to fill than usual.
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Increased TDS: Your water starts showing higher Total Dissolved Solids readings on a TDS meter.
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Taste Change: A return of saltiness or chemical taste in the purified water.
What’s in the Box?
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1 x RO Membrane Cartridge (Sealed in protective vacuum packaging)
Important Note for 400 GPD Users
Before purchasing a 400 GPD membrane, please check your current membrane size code. Size 3012 (approx. 12 inches) and 3013 (approx. 13 inches) are NOT interchangeable.
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