Light Commercial Reverse Osmosis Systems

Explore light commercial reverse osmosis systems at GroAqua, designed to provide treated water for businesses with regular water demands. Our range includes compact RO units and pumped systems for applications such as cafés, restaurants, offices and commercial kitchens. Compare production capacity, operating pressure, recovery rate and installation requirements to find a system suited to your business.


  • Last stock! Spectrum PURE Z1 E020 RO System 3,000 litre - GroAqua

    Spectrum Spectrum PURE Z1-E020 Tankless Reverse Osmosis Water Filter System – 3,000 LPD

    The SPECTRUM PURE Z1-E020 is a compact, high-performance tankless reverse osmosis system designed to provide purified drinking water directly from a dedicated kitchen tap. Combining four-stage filtration, an integrated booster pump and intelligent flushing functions, it offers a convenient alternative to traditional reverse osmosis systems with bulky storage tanks. With a nominal production capacity of up to 3,000 litres per day (LPD) and a rated flow of approximately 2 litres per minute, the Z1-E020 is designed for residential kitchens and suitable light-commercial applications. Its space-saving under-sink design eliminates the need for a conventional pressurised storage tank, while the twist-and-lock cartridge system makes routine filter replacement straightforward. Key Features and Benefits Tankless reverse osmosis: Produces purified water on demand without a conventional storage tank. 3,000 LPD nominal capacity: High-capacity filtration for residential and suitable light-commercial applications. 2 L/min rated flow: Delivers a convenient supply of purified water directly to the dedicated tap. Four-stage filtration: Combines sediment, activated carbon, reverse osmosis and post-carbon filtration. 93% nominal salt rejection: Helps reduce dissolved salts and mineral content under specified test conditions. 65% nominal water recovery: Efficient use of incoming feed water under the stated operating conditions. Integrated booster pump: Supports reverse osmosis operation within the specified 1–4 bar feed-pressure range. Automatic membrane flushing: Automatic rinsing helps maintain system performance. Filter-life monitoring: Separate indicators help show when the pre/post-filter and RO membrane cartridge need replacement. Twist-and-lock cartridges: Convenient cartridge replacement without complicated servicing. Compact under-sink design: Saves cupboard space by removing the need for a conventional RO storage tank. Complete installation kit: Includes a dedicated stainless-steel drinking-water tap, fittings, tubing and power transformer. How the SPECTRUM PURE Z1-E020 Filtration System Works The Z1-E020 uses four filtration stages, supplied through two replaceable cartridges. Stage 1 – Sediment Filtration The first stage reduces suspended particles such as sand, rust, silt and other sediment from the incoming water. This helps protect the downstream filtration components. Stage 2 – Activated Carbon Pre-Filtration The second stage uses a carbon block to reduce residual chlorine and selected compounds that can affect water taste and odour. This stage also helps protect the reverse osmosis membrane. Stage 3 – Reverse Osmosis Membrane The reverse osmosis membrane is the main purification stage. Its semipermeable membrane reduces dissolved salts, minerals and other dissolved substances as water passes through it. Stage 4 – Activated Carbon Post-Filtration The final carbon block helps improve the taste and odour of the purified water before it reaches the dedicated drinking-water tap. The filtration stages are supplied through two replacement cartridges: Z1-E020-C: Combined 3-in-1 sediment and carbon filtration cartridge. Z1-E020-M: Reverse osmosis membrane cartridge, incorporating the membrane and post-filtration arrangement described in the manufacturer's system design. High-Capacity Tankless Reverse Osmosis Traditional domestic reverse osmosis systems generally use a pressurised storage tank to hold purified water before it is dispensed. The SPECTRUM PURE Z1-E020 uses a direct-flow design, producing purified water when the drinking-water tap is opened. Its rated performance includes: Performance parameter Specification Nominal daily production 3,000 L/day Rated product flow 2 L/min Equivalent hourly flow 120 L/hour Nominal salt rejection 93% Nominal recovery 65% Storage tank None The 3,000 L/day figure is a nominal production rating, not a guaranteed household daily output. Actual production depends on water pressure, temperature, incoming TDS and other feed-water conditions. Compact Under-Sink Installation The Z1-E020 is designed for installation beneath a kitchen sink or in another suitable location close to the drinking-water outlet. Its compact dimensions are: 130 × 397 × 376 mm (W × D × H) The tankless configuration makes it particularly useful where cupboard space is limited. The system uses push-fit connections and a dedicated stainless-steel drinking-water tap. It also requires a connection to the cold-water supply, household drainage and an electrical supply through the supplied power transformer. Water Quality and Operating Requirements The SPECTRUM PURE Z1-E020 is designed for municipal water supplies. The manufacturer's installation manual specifies the following operating conditions: Parameter Specification Feed-water pressure 1–4 bar Feed-water temperature 5–38°C Maximum feed-water TDS 500 mg/L (ppm) Maximum feed-water turbidity Less than 1 NTU Nominal salt rejection 93% Nominal water recovery 65% Water supply Municipal Electrical input 100–240 V AC, 50/60 Hz Electrical output 24 V DC, 5 A Power consumption 120 W Sound level Approximately 60 dB Do not operate the system above 4 bar. A pressure-reducing valve must be installed on the water supply if incoming pressure exceeds the manufacturer's maximum. The system must be connected using the supplied power supply unit and must not be installed on a hot-water line. If the source water is microbiologically unsafe or of unknown quality, adequate disinfection is required before or after the system. The manufacturer also recommends periodic water testing to verify satisfactory performance. Automatic Flushing and Filter Monitoring The Z1-E020 incorporates automatic flushing functions to help maintain membrane performance and support consistent operation. Its flushing functions include: Automatic rinse when electrical power is switched on. Manual forced flushing using the control-panel buttons. Automatic flushing after an extended water-production period. Automatic flushing after an extended standby period. The system also has separate filter-life indicators for the 3-in-1 cartridge and RO membrane cartridge. The indicators change from blue to red as the cartridges approach the end of their programmed service life. A red indicator is a replacement reminder; the system may continue operating until the cartridge is replaced. After cartridge replacement, the relevant filter-life indicator must be reset according to the manufacturer's instructions. Replacement Filter Cartridges and Maintenance The Z1-E020 uses two dedicated twist-and-lock replacement cartridges. Replacement cartridge Function Manufacturer's suggested service interval Z1-E020-C 3-in-1 sediment and carbon pre/post filtration arrangement 6–12 months Z1-E020-M Reverse osmosis membrane cartridge 12–24 months These intervals are guidelines rather than guaranteed cartridge lifetimes. Actual replacement frequency depends on incoming water quality, daily consumption, sediment levels, chlorine, turbidity and hardness. Replace cartridges sooner if water quality deteriorates, the taste changes significantly or purified-water production falls noticeably. After replacing cartridges, reset the appropriate filter-life indicator and flush the new cartridges for approximately 5–10 minutes before returning the system to normal use. Technical Specifications Specification Value Brand SPECTRUM Model PURE Z1-E020 System type Tankless reverse osmosis Application Residential and light commercial Installation Under-sink Filtration stages 4 Nominal production capacity 3,000 L/day Rated product flow 2 L/min Equivalent hourly flow 120 L/hour Nominal salt rejection 93% Nominal water recovery 65% Storage tank None Prefilter cartridge Z1-E020-C RO membrane cartridge Z1-E020-M Cartridge connection Twist-and-lock Automatic flushing Yes Filter-life monitoring Yes Feed-water pressure 1–4 bar Feed-water temperature 5–38°C Maximum feed-water TDS 500 mg/L Maximum feed-water turbidity <1 NTU Electrical input 100–240 V AC, 50/60 Hz Electrical output 24 V DC, 5 A Power consumption 120 W Sound level Approximately 60 dB Feed connection 3/8" Purified-water connection 1/4" Drain connection 1/4" Dimensions (W × D × H) 130 × 397 × 376 mm Gross shipping weight Approximately 15 kg What's Included? The standard SPECTRUM PURE Z1-E020 package includes: SPECTRUM Z1-E020 reverse osmosis system. Z1-E020-C 3-in-1 filter cartridge. Z1-E020-M reverse osmosis membrane cartridge. Power transformer. Three-way inlet isolation valve. Drain saddle. Drain saddle connector. Brushed stainless-steel drinking-water tap. Tap quick-connect fitting. 1.5 metres of 3/8" tubing. 3 metres of 1/4" tubing. Installation accessories and user manual. Is the SPECTRUM PURE Z1-E020 Right for You? Choose the SPECTRUM PURE Z1-E020 if you want a high-capacity tankless reverse osmosis system for domestic drinking water or suitable light-commercial applications. It is particularly suitable for: Modern kitchens where under-sink cupboard space is limited. Households wanting purified water directly from a dedicated tap. Customers looking for a higher-output alternative to conventional tank-based RO systems. Small offices and light-commercial environments. Customers who value automatic flushing and convenient cartridge replacement. If you prefer a conventional reverse osmosis system with a storage tank and mineralisation stage, consider the Ecosoft PURE Balance range instead. Choose the SPECTRUM PURE Z1-E020 for compact, high-capacity, on-demand reverse osmosis water purification.

    €512,95

  • AXEON LP Series 500 RO System and Boost Pump Reverse Osmosis Axeon

    Pentair AXEON LP Series 500 RO System with Booster Pump

    The FLEXEON LP-500 Reverse Osmosis (RO) System is a high-performance and cost-effective water purification solution designed specifically for light commercial applications. With its advanced engineering, this pumped system provides consistent access to quality water, making it ideal for businesses requiring reliable and efficient water treatment. Advanced Features for Superior Filtration Equipped with the innovative AXEON TF-3012-500 membrane, the FLEXEON LP-500 ensures high-quality water filtration, removing contaminants and impurities effectively. Its 5-stage treatment process guarantees exceptional water clarity and safety: 5µ Sediment Removal Cartridge – Captures dirt, sand, and suspended particles to protect the system. 10µ Carbon Block Pre-Filter – Removes chlorine, organic compounds, and other harmful pollutants, improving water quality and taste. AXEON TF-3012-500 RO Membrane – The heart of the system, designed for precise removal of dissolved solids and contaminants. 10µ Carbon Block Post-Filter – Polishes the water for a clean, fresh taste. Integrated Flow Restrictor and Automatic Shut-Off Valve for efficient operation and water flow control. This comprehensive filtration process ensures the delivery of pure, safe, and refreshing water for everyday use. Designed for Efficiency and Durability The FLEXEON LP-500 boasts a durable wall-mounted corrosion-resistant steel cover, offering robust protection and longevity. With its compact dimensions (7.5" depth x 17" width x 19" height), the system is space-saving and perfect for smaller commercial settings. Exceptional Performance with Booster Pump Thanks to its integrated booster pump, the FLEXEON LP-500 delivers a consistent and powerful performance, achieving an impressive flow rate of 48 LPH at 10°C and up to 80 LPH at 25°C. The system also offers 40% recovery, making it both efficient and eco-friendly. Easy Installation and Maintenance Simple Installation – With its user-friendly design, the FLEXEON LP-500 can be installed quickly and seamlessly in light commercial spaces. Low Maintenance – The use of high-quality components like the AXEON membrane and Pentair 10" slimline housings ensures longevity and lowers operational costs. Key Instruments for Monitoring and Control The FLEXEON LP-500 comes equipped with key instruments to enhance user convenience and efficiency: Dual TDS Meter – Ensures water quality is monitored effectively. Permeate Pressure Gauge and Post Sediment Filter Pressure Gauge – Provide real-time operational insights. Operational Pressure Gauge – Ensures consistent system performance. Highlights at a Glance: AXEON TF-3012-500 Membrane for superior filtration. Booster Pump for consistent flow rates of up to 48 LPH at 10°C. Durable, corrosion-resistant wall-mounted design. Compact dimensions for easy installation in tight spaces. Easy-to-use controls and low operational costs. The Ideal Solution for Light Commercial Water Purification The FLEXEON LP-500 Reverse Osmosis System is the perfect choice for businesses looking for a compact, reliable, and efficient water treatment solution. Whether for small cafes, offices, or other commercial settings, it provides cost-effective and high-performance water purification that you can depend on.

    €4.441,95

Businesses that rely on consistent water quality often need more than a standard domestic water filter. Light commercial reverse osmosis (RO) systems provide a practical water treatment solution for workplaces and smaller commercial installations where regular supplies of filtered water are required.

At GroAqua, we stock light commercial reverse osmosis systems from established water treatment manufacturers, including SPECTRUM and AXEON. Our range includes compact units for smaller installations and pumped RO systems designed to provide higher water production rates.

Whether you operate a café, restaurant, office, commercial kitchen or another business requiring treated water, choosing the right reverse osmosis system depends on your daily water demand, feed water conditions and installation requirements.

Commercial Reverse Osmosis Systems for Different Applications

Reverse osmosis is a membrane-based water treatment process that uses pressure to separate water from many dissolved salts and other substances. Water passes through a semi-permeable membrane, producing a treated water stream known as permeate and a separate concentrate stream.

Light commercial RO systems can be used in a variety of business environments, including:

  • Cafés and coffee shops: RO water treatment can help manage dissolved mineral content in water used for beverage preparation. The required water quality should be checked against the equipment manufacturer's recommendations.

  • Restaurants and commercial kitchens: Treated water can support food preparation, drinks and other suitable water applications.

  • Offices and workplaces: Reverse osmosis systems can provide treated water for drinking water points and compatible dispensing equipment.

  • Hospitality businesses: Hotels, guest facilities and other hospitality environments may benefit from appropriately sized water treatment systems.

  • Specialist applications: Some businesses require controlled water quality for equipment or processes. System selection should be based on the specific water quality requirements.

The correct system depends on the volume of water required, the intended use and the quality of the incoming supply.

Compact Light Commercial RO Systems

Compact reverse osmosis systems are suitable for installations where available space is limited and water demand is relatively moderate.

The SPECTRUM PURE Z1-E020 is a compact RO system listed with a stated 3,000-litre capacity. Its design includes a combined pre- and post-filtration cartridge, RO membrane, automatic flushing settings and push-fit connections.

Features listed for the Z1-E020 include:

  • Compact system dimensions for space-conscious installations.

  • Reverse osmosis membrane filtration.

  • Integrated pre- and post-filtration.

  • Twist-and-click cartridge replacement.

  • Automatic flushing settings.

  • Cartridge change monitoring.

  • Included installation fittings and brushed stainless-steel tap.

The system is specified with a nominal salt rejection of 93% and a recovery rate of 65%. Its listed operating temperature range is 5–38°C.

Check the manufacturer's technical documentation to confirm the meaning of the stated 3,000-litre capacity and the expected production rate under your actual operating conditions.

Pumped Commercial Reverse Osmosis Systems

Where feed water pressure is insufficient or a higher production rate is required, a pumped reverse osmosis system may be more suitable.

The AXEON LP Series 500 is a light commercial RO system supplied with an integrated booster pump. It uses a five-stage filtration arrangement, including sediment filtration, carbon pre-filtration, an RO membrane and carbon post-filtration.

The system also includes monitoring components to help users keep track of operating conditions and water quality.

Listed features include:

  • Integrated booster pump.

  • AXEON TF-3012-500 reverse osmosis membrane.

  • Five-stage water treatment arrangement.

  • Sediment and carbon pre-filtration.

  • Carbon post-filtration.

  • Dual TDS monitoring.

  • Operating pressure and filter pressure gauges.

  • Wall-mounted, corrosion-resistant steel cover.

The published production figures are up to 48 litres per hour at 10°C and up to 80 litres per hour at 25°C. These figures illustrate the effect water temperature can have on RO production.

The listed recovery rate is 40%. Actual production and recovery will depend on feed water conditions, operating pressure, temperature and system configuration.

Choosing the Right Commercial RO System

Selecting a commercial reverse osmosis system involves more than comparing the advertised daily production capacity. Your system needs to meet the business's actual water requirements while operating within the manufacturer's specified conditions.

Consider the following before choosing:

1. Daily Water Demand

Estimate how much treated water your business uses during a normal working day. Consider peak demand periods as well as average consumption.

A café or restaurant may experience significant demand during busy service periods, so the system's hourly production rate can be just as important as its daily capacity.

2. Production Rate

Check the system's permeate production rate, normally expressed in litres per hour or litres per day.

Remember that published production rates are measured under specified test conditions. Lower water temperatures, different feed water quality and changes in operating pressure can reduce output.

3. Feed Water Pressure

Reverse osmosis membranes require suitable operating pressure. If incoming water pressure is too low, a system with an integrated booster pump may be necessary.

Check the minimum and maximum feed pressure requirements before selecting a system.

4. Water Recovery Rate

The recovery rate indicates the proportion of feed water converted into treated permeate.

For example, a system with a 40% recovery rate produces approximately 40 litres of permeate for every 100 litres of feed water under the stated operating conditions. The remaining water forms the concentrate stream.

Recovery rates vary between systems and operating conditions.

5. Water Quality Requirements

Consider the incoming water quality and the required treated water specification.

Important factors include:

  • Total dissolved solids (TDS).

  • Conductivity.

  • Water hardness.

  • Chlorine concentration.

  • Suspended particles.

  • Any application-specific water quality requirements.

A water analysis can help determine whether reverse osmosis alone is suitable or whether additional pre-treatment or post-treatment is required.

6. Installation Space and Connections

Check the dimensions of the system, available installation space, electrical requirements, water connections and drainage arrangements.

Commercial systems may also require appropriate access for filter replacement, membrane servicing and routine inspection.

Commercial RO System Maintenance

Regular maintenance helps maintain water quality and system performance.

The maintenance requirements will depend on the system design, incoming water quality and operating hours.

Typical maintenance tasks include:

  • Replacing sediment pre-filters at the recommended intervals.

  • Replacing carbon cartridges to protect the RO membrane from chlorine where required.

  • Monitoring permeate TDS or conductivity.

  • Checking operating pressure and production rates.

  • Inspecting pipework, fittings and connections for leaks.

  • Following manufacturer instructions for membrane flushing and cleaning.

  • Replacing RO membranes when performance monitoring indicates this is necessary.

A reduction in water production or a change in permeate quality can indicate a maintenance issue. However, low feed pressure, cold water, blocked pre-filters and membrane scaling can also affect performance.

Complete Your Commercial Water Treatment Installation

A reverse osmosis system may be only one part of a commercial water treatment arrangement. Depending on your application, you may also require:

  • Sediment and carbon pre-filtration.

  • Replacement RO membranes.

  • Post-treatment or remineralisation.

  • Storage tanks and water distribution equipment.

  • Pressure gauges and TDS monitoring.

  • Additional water treatment for hardness or other feed water issues.

Choosing compatible components and correctly sizing the complete installation helps ensure that the system meets your business's water requirements.

Buy Light Commercial Reverse Osmosis Systems from GroAqua

Explore light commercial reverse osmosis systems at GroAqua, including compact SPECTRUM units and pumped AXEON systems.

Whether you need a space-saving RO system for a smaller business or a higher-output solution for a more demanding installation, compare production rates, operating pressures, recovery rates and filtration stages before ordering.

If you are unsure which system is suitable, consider your daily water consumption, incoming water quality and required treated water specification before making a selection.

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