Water Purification
Vontron Reverse Osmosis Membrane XLP11-4040
XLP series of extremely low-pressure aromatic polyamide compound membrane elements can work under ultra-low pressur…
In stock
The separation stage at the heart of RO
Reverse osmosis membranes in South Africa.
Compare RO membrane models and formats for compatible domestic, commercial and high-flow water-treatment systems.
Nationwide deliveryFast dispatch across South Africa
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Water Purification
High-Flow RO Membrane TW-8040 HF | Superior Water Filtration
RO Membrane TW – 8040 HF High Quality RO Membrane For Perfect Water Purification Experience unparalleled water puri…
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Water Purification
Reverse Osmosis Membrane TW – 2540 HF
Reverse Osmosis Membrane TW – 2540 HF High Quality Reverse Osmosis Products Membrane type Polyamide Composite Membr…
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Water Purification
Water Purification RO Membrane TW – 4040 HF
The Water Purification RO Membrane TW-4040 HF This water purification tool is an advanced reverse osmosis membrane…
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Original buying guide
Compare the details that matter.
Product-specific guidance for South African shoppers, written around the products in this collection.
RO membranes for different system formats
The reverse osmosis membrane is the selective barrier within an RO process. Factory Deals Online lists domestic and commercial membrane options, including TW and Vontron products and common 2540, 4040 and 8040-style formats. These numbers relate to element size conventions and do not make otherwise different membranes interchangeable.
When searching for reverse osmosis membranes in South Africa, match the complete model, dimensions, capacity, pressure range and intended application. A membrane must be compatible with the pressure vessel, flow arrangement and system design.
Capacity, rejection and operating conditions
Published membrane flow and salt-rejection figures are measured under specified test conditions. Real output changes with pressure, temperature, feed concentration, recovery and fouling. A high-flow element still needs suitable pumps, housings, pretreatment, controls and concentrate management.
Do not replace a membrane based on physical size alone. Review the manufacturer's datasheet, model suffix, material, nominal flow and operating limits. For commercial installations, a water-treatment professional should confirm array design and system compatibility.
Pretreatment, storage and replacement
Sediment, chlorine, hardness, iron, silica, organics and microbiological activity can damage or foul an RO membrane. Appropriate pretreatment and monitoring protect performance. Replacement should respond to normalised flow, pressure drop, rejection and cleaning history, not appearance alone.
Keep a new membrane sealed and stored according to the manufacturer until installation. Current product prices and availability are shown online, with delivery across South Africa calculated at checkout. Contact the support team for listed specifications, while system design and commissioning should be handled by a competent specialist.
Questions, answered
RO Membranes FAQs.
Practical answers to help you shortlist the right product and order with confidence.
Ask our teamAre all 4040 RO membranes interchangeable?
No. Physical format is only one requirement. Compare model, flow, rejection, pressure limits, feed-water suitability and system design before substitution.
What is the difference between 2540, 4040 and 8040 membranes?
They are common element-size formats used in different system capacities and pressure vessels. Exact dimensions and specifications must still be confirmed from the datasheet.
How long does an RO membrane last?
Service life varies with pretreatment, water quality, operating conditions, cleaning and maintenance. Performance monitoring is more reliable than a fixed replacement period.
Can chlorine damage an RO membrane?
Many common polyamide RO membranes are sensitive to oxidants such as free chlorine. Follow the membrane manufacturer's feed-water limits and pretreatment requirements.
Can membranes be shipped across South Africa?
Yes. Factory Deals Online offers nationwide delivery, with the courier fee calculated from the destination at checkout.
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