Reverse Osmosis Systems
Advanced Water Purification for Cleaner, Better-Tasting Water
FlowSpec supplies high-performance reverse osmosis water purification systems for residential, workplace, hospitality and commercial applications.
Reverse osmosis, commonly known as RO, is one of the most effective water-treatment technologies for reducing dissolved salts and a wide range of other impurities from water. By combining sediment filtration, activated carbon treatment and a specialised reverse osmosis membrane, an RO system can produce exceptionally clean water for drinking, food preparation, coffee, hospitality and other applications where water quality matters.
Our AquaWave range includes compact 75 GPD systems for homes and workplaces, stylish all-in-one cabinet systems, an energy-efficient pump-free option and the high-capacity AquaWave Pro G500, capable of producing up to approximately 1,514 litres of purified water per day.
Whether you need purified drinking water at home or a dependable commercial supply for a restaurant, coffee shop, office or business, FlowSpec can help you select the right RO system for your water quality and daily demand.
AquaWave Classic 75 GPD
Proven Five-Stage RO Purification
The AquaWave Classic is a compact, traditional bracket-style reverse osmosis system designed primarily for residential and workplace drinking-water applications.
With a rated maximum RO water production of 75 gallons per day, approximately 284 litres per day, it provides ample purified water for typical household drinking, cooking and office requirements.
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The five-stage system starts with a 5-micron polypropylene sediment filter, which removes particles such as dirt, rust, sand and pipe scale.
The second stage uses granular activated carbon to reduce chlorine, taste and odour.
A third protective carbon stage uses BLOCKFREE technology to provide further carbon treatment while helping protect the RO membrane.
The fourth stage is the reverse osmosis membrane itself, followed by a final activated-carbon polishing filter to improve the taste of the purified water.
The AquaWave Classic is an excellent option for customers who value a conventional, serviceable RO design with replaceable cartridges and straightforward access to individual components.
An RO storage tank is used with this type of system and should be sized according to the installation and water demand.
- Maximum production: approximately 284 L/day
- System type: bracket
- Filtration: 5 stage
- Application: home, workplace and light commercial drinking water
AquaWave Premium 75 GPD
Compact, Enclosed and Easy to Maintain
The AquaWave Premium provides the same 75 GPD class of reverse osmosis purification in a more refined, all-in-one cabinet design.
Instead of exposing individual filter housings and components, the filtration system is enclosed inside a compact cabinet. This creates a neat installation particularly suited to modern kitchens, offices, hospitality environments and applications where appearance and convenient servicing are important.
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The AquaWave Premium uses a five-stage treatment process incorporating sediment filtration, activated carbon prefiltration, membrane protection, a 75 GPD RO membrane and final carbon polishing.
The system uses quick-connect inline filters, making routine cartridge replacement considerably cleaner and simpler than many conventional open-housing systems.
Depending on the supplied configuration, AquaWave Premium systems can also incorporate features such as a pressure-reducing valve, leak detection and a booster pump.
The system is designed to produce up to approximately 284 litres of purified water per day, subject to suitable inlet conditions.
For homes or businesses looking for high-quality RO drinking water with a clean, compact installation, the AquaWave Premium provides an excellent balance between purification performance, appearance and serviceability.
- Maximum production: approximately 284 L/day
- System type: enclosed cabinet
- Filtration: 5 stage
- Application: homes, offices, hospitality and workplaces
AquaWave Premium Eco 75 GPD
Energy-Efficient Reverse Osmosis Without a Booster Pump
The AquaWave Premium Eco provides the compact cabinet design and five-stage purification of the AquaWave Premium in a configuration designed to operate without a booster pump.
This makes it an attractive option where incoming water pressure is already suitable for reverse osmosis operation and reduced electrical consumption is preferred.
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Like the standard Premium system, the Eco has a rated maximum RO production of approximately 284 litres per day.
The absence of a booster pump means that correct incoming water pressure is particularly important. RO membrane production decreases when feed pressure is too low, so FlowSpec will assess the available pressure before recommending this configuration.
Where adequate pressure is available, the Premium Eco provides a neat, efficient solution for residential, hospitality and workplace applications.
- Maximum production: approximately 284 L/day
- System type: enclosed cabinet
- Filtration: 5 stage
- Booster pump: no
- Application: suitable homes, offices and businesses with adequate incoming pressure
AquaWave Pro G500
High-Capacity Continuous-Flow Reverse Osmosis
For applications requiring considerably more purified water, FlowSpec offers the AquaWave Pro G500.
The G500 is a compact, high-capacity continuous-flow RO system capable of producing up to 400 gallons or approximately 1,514 litres of purified water per day.
This makes it particularly suitable for businesses and applications where a conventional 75 GPD drinking-water system cannot meet the required demand.
Typical applications include restaurants, coffee shops, hospitality businesses, dental practices, workplaces and other commercial installations requiring a dependable supply of high-quality purified water.
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The G500 incorporates polypropylene sediment filtration, high-capacity activated-carbon treatment, a 400 GPD RO membrane and final activated-carbon polishing.
Its advanced design also includes automatic membrane flushing, dry-run protection with automatic restart and built-in leak detection. Automatic flushing helps reduce membrane fouling and supports longer membrane service life.
The system uses a modular cartridge design intended to make filter replacement quick and minimise water spillage during servicing.
The G500 can operate as a continuous-flow purification system and can also be combined with an appropriately sized RO storage tank where the application has periods of particularly high demand.
Manufacturer specifications state an incoming operating pressure range of approximately 1.4 to 4 bar, operating temperature of 5°C to 38°C, and feed-water TDS up to 2,000 ppm, subject to the other specified feed-water limits.
- Maximum production: approximately 1,514 L/day
- Capacity: 400 GPD
- System type: compact high-capacity cabinet
- Filtration: 5 stage
- Operating pressure: approximately 1.4 to 4 bar
- Maximum feed TDS: 2,000 ppm
- Application: commercial and higher-demand purified-water applications
What Is Reverse Osmosis?
Reverse osmosis is a membrane-based water purification process.
During normal osmosis, water naturally moves across a semi-permeable membrane towards the side containing a higher concentration of dissolved substances. Reverse osmosis applies pressure to reverse this process.
Incoming water is forced through a very fine RO membrane. Water molecules pass through the membrane while a large proportion of dissolved salts and other contaminants are rejected and discharged in a separate concentrate stream.
The purified water that passes through the membrane is known as permeate or product water.
This makes reverse osmosis fundamentally different from ordinary sediment or carbon filtration. Conventional filters are highly effective for particles, chlorine, taste and odour, but an RO membrane can also address many substances that are dissolved in the water.
Why Use Reverse Osmosis?
Water can appear perfectly clear while still containing high levels of dissolved minerals and other substances.
Reverse osmosis is particularly useful where the objective is to reduce total dissolved solids, commonly called TDS, and improve the overall purity of drinking water.
Depending on the source water and the specific system, RO treatment can reduce dissolved salts and may reduce substances such as sodium, calcium, magnesium, chloride, fluoride, nitrates and certain metals.
It can also provide a physical barrier against extremely small microbiological contaminants.
The final result is water with substantially fewer dissolved impurities than could normally be achieved using sediment and activated-carbon filtration alone.
RO is therefore widely used for drinking water, food preparation, coffee and beverage applications, hospitality, workplaces and commercial processes where consistent water quality is important.
Five-Stage Water Purification
The AquaWave RO systems use multiple treatment stages rather than relying on the RO membrane alone.
The exact cartridge configuration varies according to the model, but the treatment process typically begins with sediment filtration to remove particles such as dirt, rust, sand and pipe scale.
The water then passes through activated-carbon treatment. Carbon helps reduce chlorine, unpleasant tastes and odours while also protecting the RO membrane from compounds that could shorten its service life.
A further protective carbon stage provides additional treatment before the water reaches the reverse osmosis membrane.
The RO membrane performs the main dissolved-solids separation stage.
Finally, purified water passes through a polishing carbon filter before reaching the drinking-water tap. This final treatment helps improve the taste and freshness of the product water.
Using several stages allows each component to perform a specific function while helping protect the more specialised RO membrane.
FlowSpec AquaWave Reverse Osmosis Range
FlowSpec offers four AquaWave configurations, allowing the system to be matched to the required water demand, installation type and available water pressure.
| System |
Capacity |
Configuration |
Filtration |
Best Suited To |
| AquaWave Classic |
Up to 284 L/day |
Open bracket |
5 stage |
Homes and offices |
| AquaWave Premium |
Up to 284 L/day |
Enclosed cabinet |
5 stage |
Homes, offices and hospitality |
| AquaWave Premium Eco |
Up to 284 L/day |
Cabinet, no pump |
5 stage |
Suitable installations where low energy use is preferred |
| AquaWave Pro G500 |
Up to 1,514 L/day |
High-capacity cabinet |
5 stage |
Commercial and higher-demand applications |
Actual production depends on incoming water pressure, temperature, water chemistry and membrane condition.
Which Reverse Osmosis System Do I Need?
Selecting an RO system should not be based only on its daily production rating.
FlowSpec considers the incoming water quality, TDS, hardness, chlorine level, available pressure, temperature, required daily water volume and peak demand.
For a typical home, an AquaWave Classic or Premium system may provide more than enough drinking and cooking water.
Where inlet pressure is suitable and a pump-free system is preferred, the AquaWave Premium Eco may be appropriate.
Applications such as coffee shops, restaurants and businesses with higher continuous demand may be better suited to the AquaWave Pro G500.
Water quality is equally important. High levels of sediment, hardness, iron or other contaminants may require prefiltration or conditioning before the RO system to protect the membrane and maintain reliable performance.
FlowSpec can evaluate these requirements and recommend the complete treatment system rather than simply selecting an RO unit by capacity.
RO and Hard Water
Reverse osmosis can reduce calcium, magnesium and other dissolved minerals, but very hard water can also cause scaling on the RO membrane.
Membrane scaling reduces production, increases waste and can shorten membrane service life.
Where incoming water hardness is high, FlowSpec may recommend additional anti-scale treatment or water softening ahead of the RO system.
Our OneStop+ anti-scale systems and other water-conditioning solutions can be incorporated where appropriate to protect downstream equipment.
The correct treatment depends on the water chemistry and intended application.
RO and Sediment
An RO membrane should not be used as a replacement for proper sediment filtration.
Water containing excessive sand, silt, rust or suspended solids should be filtered before reaching the membrane.
Good prefiltration reduces fouling and allows the RO membrane to concentrate on what it does best: separating dissolved contaminants from the product water.
For installations with significant sediment loads, FlowSpec can integrate an RO system with our wider range of water filters and filter housings.
Does Reverse Osmosis Remove Minerals?
Yes. Reverse osmosis reduces many dissolved minerals, including calcium and magnesium.
This is one of the reasons RO water has a much lower TDS than the incoming supply.
For most drinking-water applications, this is precisely the objective of the treatment process. However, customers who prefer mineralised drinking water can discuss additional post-treatment options with FlowSpec.
The correct configuration depends on both the incoming water chemistry and the desired finished-water characteristics.
Reverse Osmosis Produces Reject Water
RO purification separates incoming water into two streams.
One stream passes through the membrane and becomes purified product water. The other carries the rejected dissolved material away from the membrane and is discharged as concentrate or reject water.
This reject stream is a normal and necessary part of the reverse osmosis process.
The ratio between product water and reject water depends on the system design, pressure, membrane, temperature and source-water quality.
Correct system selection is therefore important where water efficiency is a major consideration.
The AquaWave Pro G500 is specifically designed as a higher-efficiency continuous-flow RO system and incorporates automatic controls to support efficient operation.
Where Can FlowSpec RO Systems Be Used?
The AquaWave range is suited to a wide variety of purified-water applications, from a single kitchen drinking-water tap through to higher-demand commercial installations.
Common applications include homes, offices, boardrooms, restaurants, coffee shops, guest houses, hotels, lodges, commercial kitchens, dental practices, beverage applications and workplaces.
For industrial or process-water applications requiring capacities beyond the AquaWave range, FlowSpec can assess the requirement and recommend an appropriately engineered water-treatment solution.
Maintenance and Filter Replacement
All reverse osmosis systems require maintenance.
Sediment and activated-carbon cartridges have finite service lives and must be replaced periodically. The RO membrane also requires eventual replacement, although its useful life can be considerably longer when the system is correctly specified, the prefilters are maintained and the feed water is suitable.
Service intervals depend on water consumption and incoming water quality rather than time alone.
High sediment loading, excessive chlorine, hardness, iron or poor source-water quality can shorten component life.
Regular servicing protects the membrane, maintains water quality and helps ensure that the system continues to produce water at the expected rate.
FlowSpec can supply replacement filters, membranes and compatible RO components for the AquaWave systems we supply.
Start With Your Water Quality
The best RO system is the one designed around the water entering it.
If the source is borehole water, stored water or another supply of uncertain quality, FlowSpec recommends obtaining a water analysis before specifying the treatment system.
The results can identify factors such as TDS, hardness, iron, manganese, pH, turbidity and other parameters that may influence the RO design.
The required pretreatment can then be selected before the membrane rather than discovering problems after installation.
This approach can improve system reliability, protect the membrane and help achieve the required finished-water quality.
Why Choose FlowSpec for Reverse Osmosis?
FlowSpec provides more than an RO unit.
We help determine what is in your water, how much purified water you need and what treatment is required to achieve it.
Our team can assist with system selection, water-quality assessment, prefiltration, anti-scale treatment, storage-tank sizing, pressure requirements, RO integration, replacement filters and ongoing technical support.
Whether you need purified water for your home, office, restaurant or commercial operation, FlowSpec can help you select a practical RO solution built around your actual requirements.
Better Water Starts With the Right System
From a compact 75 GPD AquaWave Classic to the 400 GPD AquaWave Pro G500, FlowSpec offers reverse osmosis systems for a wide range of drinking-water and commercial applications.
Tell us where your water comes from, approximately how much purified water you require and what water-quality problem you are trying to solve.
We will help you select the correct reverse osmosis system and determine whether filtration, conditioning or other pretreatment is required.
