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.