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.

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.
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.

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.
Fast, Free Delivery
Quick Dispatch, No Hidden Fees
Friendly Expert Support
0121 630 1130
Ongoing Customer Care
Advice Before and After Sale
Manufacturer's Warranty
Peace of Mind Included
Dimensions
Height 376mm x Width 130mm x Depth 397mm
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 |
All-Inclusive Price with Delivery Included
view all luxury filter taps
-
Perrin & Rowe Perrin & Lowe Provence Filter Tap 3 Leverfrom £1,038.00Parthian Mini Instant Hot Tap Chrome The Parthian Mini in Chrome is a luxury monobloc kitchen tap with classic Perrin & Rowe ...
View full details -
Perrin & Rowe Perrin & Rowe Etruscan with Cold Filterfrom £972.00Perrin & Rowe Etruscan with Cold Filter The Perrin & Rowe Etruscan with Cold Filter is a luxury sink mixer with integrate...
View full details -
Perrin & Rowe Parthian Mini Instant Hot Tap Chromefrom £969.99Parthian Mini Instant Hot Tap Chrome The Parthian Mini in Chrome is a luxury monobloc kitchen tap with classic Perrin & Rowe ...
View full details -
Clearwater Clearwater Longdon 4 in 1 Instant Boiling Tap with Rinse£759.99Discover the Benefits of a Clearwater Kettle Tap 4-in-1 Tap Clearwater Kettle Tap Swan Neck Elevate your kitchen with the Clearwater Longdon,...
View full details -
Clearwater Clearwater Longdon 4-in-1 Kettle Tap | Boiling & Filtered Water£759.99Discover the Benefits of a Clearwater Kettle Tap 4-in-1 Tap Clearwater Kettle Tap Swan Neck Elevate your kitchen with the Clearwater Longdon,...
View full details -
Clearwater Clearwater Longdon 4 in 1 Instant Boiling Tap with Rinse£739.99Discover the Benefits of a Clearwater Kettle Tap 4-in-1 Tap Clearwater Kettle Tap Swan Neck Elevate your kitchen with the Clearwater Longdon,...
View full details -
Hommix Guglielmi Rose Gold 3-Way Tap (Triflow Filter Tap)£599.99Want luxury, style and instant filtered water from the same tap? The Guglielmi Rose Gold 3-Way Tap (Triflow Filter Tap) blends bold Italian design ...
View full details -
Hommix Hommix Luana Gold Pull-Out Spray 3-Way Filter Tap£599.99This glamorous Hommix 3 way tap brings style and convenience The Hommix Luana Gold is an ideal addition to luxury kitchens, combi...
View full details -
Hommix Hommix Tatiana Copper Pull-Out Spray 3-Way Triflow Tap£499.99Looking for a touch of elegance in your kitchen? This Hommix tap will add it The Hommix Tatiana Copper 3 way pull out spray tap c...
View full details -
Clearwater Clearwater Magus 3n1 Kettle Tap Brushed Copper£579.99Why Should You Should Upgrade to a Clearwater 3 in 1 Kettle Tap Clearwater Tap Filter Swan Neck Make your kitchen smarter and more stylish w...
View full details
