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Spectrum Z1 Tankless Reverse Osmosis System

£549.99

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Compact, High-Performance Water Filtration for Any Kitchen

Overview

The SPECTRUM Z1 is a sleek, high-performance under-sink reverse osmosis (RO) system designed for both residential and light commercial use. Its compact design makes it ideal for kitchens or workspaces where space is at a premium, while delivering powerful, reliable water purification. Engineered to remove salts, impurities, and contaminants, the Z1 produces clean, great-tasting drinking water directly from your tap. It features twist-and-click cartridges and push-fit tubing connections for a simpler installation and maintenance.

An under sink reverse osmosis system in dark blue

Key Features

Compact, Space Saving Design:

 Fits seamlessly under most sinks without occupying excessive space.

Multi-Stage Filtration Process:

Utilises multi-stage filtration to remove impurities like chlorine, lead, and other contaminants.

Easy Installation:

Twist-and-click cartridges and push-fit connections simplify setup and keep maintenance at a minimal.

Smart Monitoring & Auto-Flush:

 Equipped with cartridge change indicators and auto-flush settings for optimal performance.

Full Fitting Kit:

Includes all necessary fittings connections, tubing, and a brushed stainless-steel tap.

under sink ro system with two cartridges installed

Why Choose a Under Sink Reverse Osmosis System?

Removes up to 99% of water contaminants, including chlorine, fluoride, lead, arsenic, and heavy metals for safe, purified drinking water.

Space-saving under sink design keeps your countertop clear while delivering high-performance water filtration.

Provides reverse osmosis filtered water on demand, ideal for drinking, cooking, and preparing baby formula.

Cost-effective alternative to bottled water, helping you save money while ensuring cleaner, healthier hydration.

Improves tap water taste and odour, delivering crisp, refreshing water straight from your faucet.

Easy to maintain with long-life RO filters, twist-fit cartridges, and optional auto-flush technology.

What's Included

Everything you need is included with your product.

  • Spectrum Z1 Reverse Osmosis System
  •  3-in-1 pre-post filter
  • RO membrane
  • Power Transformer
  •  Inlet 3-way isolation valve
  •  Drain saddle & connector
  •  Brushed stainless steel tap and connector
  •  Tubing: 1.5m x 3/8” white 3m x 1/4” white

Installation & Maintenance

Easy DIY Installation Steps

This under-sink reverse osmosis system features push-fit connections and a simple setup process, making DIY installation quick and easy. It fits neatly under most kitchen sinks and connects directly to your cold water supply.

Cartridge Replacement in Under 30 Seconds

Thanks to a twist-and-click design, replacing RO filter cartridges takes less than 30 seconds—no tools or plumbing experience needed. Enjoy consistently clean water with minimal effort.

Maintenance Alerts and Auto-Flushing

Built-in cartridge change indicators and auto-flush technology keep your system performing at its best. These features ensure long-lasting filter life and reliable contaminant removal.

dimensions and diagram for Spectrum Under sink reverse osmosis system

How to Install the Spectrum Z1 RO System

Installing the Spectrum Z1 Reverse Osmosis System is designed to be simple, even for DIY beginners. Everything you need is included in the box, and with push-fit tubing and twist-fit cartridges, the process is quick and mess-free. Here's a basic step-by-step overview:

1. Connect to the Cold Water Supply

Use the included 3-way isolation valve to connect the system to your cold water line. This lets you divert water into the filtration unit while keeping your existing tap functional.

2. Fit the Drain Saddle

Install the drain saddle and connector onto your sink’s waste pipe. This is where the system discharges filtered-out contaminants.

3. Mount the Stainless Steel Tap

Drill or use an existing tap hole to install the brushed stainless steel faucet. This tap will dispense your freshly filtered water.

4. Connect the Tubing

Use the provided push-fit tubing (1.5m x 3/8" and 3m x 1/4") to connect the inlet, outlet, and drain lines. The colour-coded or labelled instructions help guide each connection.

5. Insert the Filters

Twist the 3-in-1 pre-post filter and RO membrane into place. These simply click and lock in—no tools needed.

6. Plug in the Power Transformer

Connect the power supply to activate the system’s smart features, including auto-flushing and filter monitoring.

What contaminants does the SPECTRUM Z1 remove?

The SPECTRUM Z1 reverse osmosis system removes a wide range of contaminants, including dissolved salts and minerals like sodium, chloride, calcium, magnesium, and sulphates—significantly reducing total dissolved solids (TDS) for cleaner, better-tasting water. It also effectively filters out heavy metals such as lead, mercury, and cadmium (up to 99%), reduces nitrates and nitrites often found in agricultural runoff, and removes up to 95% of fluoride. Additionally, it offers limited protection against microorganisms like bacteria, viruses, and cysts, though it’s typically used alongside UV or carbon filters for complete microbial safety.

How often do I need to replace the filters?

Filter replacement depends on usage and water quality, but pre-filters typically last 6–12 months, while the RO membrane may last up to 2–3 years. The built-in filter change indicator notifies you when it’s time to replace.

Does the system include everything I need?

Yes, the SPECTRUM Z1 includes all necessary components for installation: twist-fit cartridges, tubing, connections, an isolation valve, and a premium stainless-steel tap.

Does the Spectrum Z1 system flush automatically?

Yes, the SPECTRUM Z1 features an auto-flush function that helps clean the RO membrane, enhancing performance and extending filter lifespan—so you get consistent, high-quality water with less maintenance.

How Do I Install It?

Installing the Spectrum Z1 Reverse Osmosis System is quick and straightforward. The kit includes everything you need: a 3-in-1 pre-post filter, RO membrane, power transformer, 3-way inlet isolation valve, drain saddle, brushed stainless steel tap, and push-fit tubing. The system connects easily to your cold water supply using the isolation valve, while the drain saddle securely fits your waste pipe. With pre-cut tubing and twist-fit cartridges, the setup takes under an hour for most users—no advanced plumbing skills required. Just connect, secure, and enjoy pure, filtered water from your new tap.

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Dimensions

Height 376mm x Width 130mm x Depth 397mm

Spectrum Under Sink Ro System manual
Spectrum Z1 RO System Overview

Warranty Information

Technical Specifications

Operating Temperature (°C) 5-38
Minimum Feed Pressure (bar) 1
Feed Water Source (ppm) <500
Sleeping Capacity 4 Person
Recovery 65
Nominal Salt Rejection (%) 93
Voltage 220 VAC 50 Hz
Maximum Feed Water Turbidity (NTU) <1

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