FilmTec Membrane – Professional Guide for Water Purification.

Title: FilmTec Membranes in Kenya, A Complete Guide to High Quality RO Water Purification

tassmattagencies@gmail.com Blog Water November 19, 2025

FilmTec membranes are high-performance Reverse Osmosis (RO) elements manufactured using Thin-Film Composite (TFC) technology. They are designed to remove dissolved salts, minerals, and impurities from water at the molecular level, producing clean, fresh, and safe water for human, commercial, and industrial use.

Developed by DuPont Water Solutions, FilmTec™ membranes are trusted globally for their efficiency, durability, and consistency in both small and large-scale water treatment systems.

Table of Contents

How FilmTec™ Membranes Work

FilmTec™ membranes operate through the reverse osmosis process, where pressurized feed water passes through a semi-permeable polyamide layer.
This layer allows water molecules to pass while rejecting up to 99.5% of dissolved solids, including:

Salts and minerals (TDS)
Heavy metals such as lead and arsenic
Organic contaminants and bacteria
Nitrates and other harmful chemicals

The result is high-quality permeate (purified water) suitable for drinking, bottling, industrial processing, or laboratory applications.

Popular FilmTec™ Membrane Models and Sizes

FilmTec™ membranes come in various capacities and diameters, making them suitable for multiple system sizes and feedwater conditions. Tassmatt Limited supplies a wide range of models for domestic, commercial, and industrial systems:

Model	Type	Capacity / Flow Rate	Typical Use
FilmTec™ TW30-1812-50	Domestic RO	50 GPD (Gallons Per Day)	Household RO systems
FilmTec™ TW30-1812-75	Domestic RO	75 GPD	High-output domestic units
FilmTec™ BW30-4040	Brackish Water RO	2400 GPD	Small commercial RO plants
FilmTec™ BW30-8040	Industrial RO	10,500 GPD	Large commercial & industrial systems
FilmTec™ SW30-4040 / SW30-8040	Seawater RO	8,000–24,000 GPD	Desalination plants

Tip: The choice depends on your feedwater salinity (TDS), source (tap, borehole, or seawater), and daily water demand. Tassmatt experts help you select the right model for your system.

Key Features and Benefits

High Salt Rejection: Removes up to 99.5% of contaminants, ensuring premium water quality.
Long Membrane Life: Designed for extended service with proper pretreatment and maintenance.
High Permeate Flow: Delivers more purified water with lower energy use.
Chemical Resistance: Strong polyamide layer tolerates wide pH and pressure ranges.
Compatible with Most RO Systems: Easily fits standard 1812, 4040, and 8040 housings.

Applications of FilmTec™ Membranes

Domestic and office water purifiers
Commercial bottling plants
Borehole and brackish water treatment systems
Food & beverage industries
Hospitals and laboratories
Pharmaceutical and industrial processes

From a single household unit to a multi-stage industrial RO system, FilmTec™ membranes ensure reliable performance and consistent water quality.

Maintenance & Care

To extend the life of your FilmTec™ membrane:

Use prefilters and activated carbon filters for sediment and chlorine removal.
Maintain SDI (Silt Density Index) ≤ 3 in feed water.
Clean membranes periodically using approved RO cleaning chemicals.
Replace membranes every 2–4 years, depending on use and feedwater quality.

Tassmatt Limited provides membrane replacement, cleaning chemicals, and after-sales support for all RO systems.