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Ecosoft under sink ro system in white and green with three filters and a faucet

Ecosoft CROSS 90 Balance Direct Flow RO System

by Ecosoft
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£579.99

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Advice Before & After Sale
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Direct Flow Reverse Osmosis System with Built-In Remineralisation

Tankless Reverse Osmosis System for Pure, Balanced Drinking Water

Enjoy fast, clean, and great-tasting water with the Ecosoft CROSS 90 Balance. This advanced direct flow reverse osmosis system delivers up to 90 litres per hour—no storage tank required. It removes harmful contaminants including chlorine, PFAS, heavy metals, and bacteria, while adding essential minerals like calcium and magnesium for healthier, balanced hydration.

Designed with convenience and safety in mind, it features smart LED status lights and built-in leak protection. Ideal for households that want both ultra-pure filtration and naturally mineralised water in a compact, efficient unit.

Ecosoft RO System list of features
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Direct Flow RO

Instant, high-flow filtration with no storage tank needed.

Water droplets remineralisation

Remineralisation

Adds Calcium for Improved Taste and Health Benefits

three arrows in a circle

Fast Recovery Rate

Reduced water use with less wastewater most RO systems

a smart indicator

Smart Indicator

LED and audio alerts signal filter changes and water quality drops.

How the Ecosoft CROSS 90 Balance Purifies Your Water

The Ecosoft CROSS 90 Balance uses a powerful three-stage direct flow filtration process to deliver ultra-clean, mineral-enriched water on demand. Each stage targets specific contaminants, ensuring safe, great-tasting drinking water straight from the tap.

Stage 1: Sediment and Chlorine Reduction – Composite Polypropylene & Carbon Block Filter

Incoming water first flows through a dual-action pre-filter that captures sediment (like sand, rust, and silt) while reducing chlorine, organic compounds, and petrochemical residues. This protects the membrane and enhances the overall effectiveness of filtration.

Stage 2: Deep Purification – 600 GPD Reverse Osmosis Membrane

In the heart of the system, a high-capacity reverse osmosis membrane (600 gallons per day) removes up to 99.8% of dissolved solids, bacteria, viruses, heavy metals, and PFAS. This stage delivers exceptional water purity by filtering at the molecular level.

Stage 3: Taste & Mineral Enhancement – Carbon Block with Mineralisation

Finally, water is polished through an activated carbon post-filter, which improves taste and removes any residual odours. It also adds essential minerals like calcium and magnesium—restoring natural balance and making the water healthier and more refreshing.

three ecosoft filters with explanation about each one

NSF Certified – What Does This Mean?

NSF/ANSI 58 certified components ensure that the Ecosoft CROSS 90 Balance meets strict standards for safety, performance, and material quality. This certification confirms that the system effectively reduces a wide range of contaminants, including lead, nitrates, and total dissolved solids (TDS), while using materials that are safe for contact with drinking water. It also verifies the system’s long-term reliability under normal operating conditions, offering added peace of mind for households seeking clean, safe, and dependable water filtration.

NSF in a circle

Intelligent Filter Monitoring and Safety Features

The Ecosoft CROSS 90 Balance offers advanced monitoring and protection for total peace of mind. Its built-in safety systems actively manage performance and prevent issues before they arise.

Real-Time Water Quality Monitoring

An intelligent LED on the front panel continuously monitors water quality. If purity drops, you’ll receive a visual alert—so you always know when your water needs attention.

Advanced Protection Systems

  • Automatic Membrane Flushing helps maintain system performance by rinsing the membrane at key intervals: initial connection, 5 minutes post-use, and after 12 hours of inactivity.
  • Leak Detection & Auto Shut-Off instantly halts water intake if a leak is detected inside the unit.
  • Faucet Safety Timer triggers a sound alert after 30 minutes and shuts off the water 3 minutes later if the tap remains open.
smart taps showing intelligent filter monitoring for under sink ro system

Smart Indicators and Maintenance Reminders

Ecosoft CROSS 90 Balance includes intuitive filter tracking tools to help you stay on schedule without effort.

Filter Status Notifications

A clear, colour-coded LED system—located on both the faucet and front panel—keeps you updated on filter condition:

  • Green – Normal operation
  • Purple – Nearing end of life
  • Red – Replacement required

Complementing this, audio signals give gentle prompts:

  • 1 short beep – Prepare for replacement
  • 2 short beeps – Replace immediately

This smart system ensures your water stays consistently safe without manual checks.

3 coloured lights on a reverse osmosis system

Quick, Clean Cartridge Replacement – No Mess, No Fuss

Changing filters on the CROSS 90 Balance is refreshingly easy. The twist-and-lock cartridge design automatically shuts off the water supply when a cartridge is removed, making the process completely mess-free. No tools, no water shut-off valve, and no stress—just a smooth, 10-minute changeover you can handle yourself. The system's built-in design ensures that even first-time users can maintain it confidently and cleanly.

Ecosoft water filter being replaced on an under sink ro system
Installation components for ecosoft under sink RO System
Measurements and pictures of an installed RO System for faucet

Under-Sink RO System That’s Simple to Install

This video shows how to install the Ecosoft CROSS 90 Balance reverse osmosis system quickly and easily under your sink. If you feel you need help with installation just give us a call on 0121 630 1130 or click on the Green WhatsApp icon.

How easy is it to install the Ecosoft CROSS 90 Balance?

The Ecosoft CROSS 90 Balance is designed for simple, under-sink installation with no specialist tools required. Most users can complete setup in under an hour using the included fittings, hoses, and 3-way connector. A step-by-step video guide is also available to walk you through the process.

What contaminants does the system remove?

This system uses a high-capacity 600 GPD reverse osmosis membrane to remove up to 99.8% of contaminants, including: PFAS and other chemicals Chlorine and volatile organic compounds (VOCs) Heavy metals like lead, mercury, and arsenic Bacteria, viruses, and cysts Nitrates, fluoride, and sediment You get cleaner, safer, better-tasting water straight from the tap.

Does it add minerals back into the water?

Yes, the final filtration stage includes a mineralising post-filter that adds essential minerals such as calcium and magnesium. These improve the taste, support healthy hydration, and restore natural balance to the water — ideal for everyday drinking and cooking.

How often do I need to replace the filters?

To keep your system performing at its best: Prefilter (CF) – Replace every 12 months RO Membrane (600 GPD) – Replace every 24 months Carbon & Mineral Filter (MCB) – Replace every 12 months Smart LED lights and sound alerts will remind you when each element needs changing, so you’ll never forget.

How is this different from traditional RO systems?

Unlike standard RO systems with bulky storage tanks and slower output, the CROSS 90 Balance uses direct flow technology to deliver up to 1.5 litres per minute — no tank required. It also includes: Built-in mineralisation Smart filter and water quality indicators Automatic membrane flushing Leak detection and faucet safety shutoff Quick, dry cartridge replacement It’s a cleaner, faster, and more advanced way to enjoy filtered water at home.

What's Included

Everything you need is included with your product.

  • Filter housing
  • Set of replacement filters
  • Smart faucet for purified water
  • 3-way connector
  • Drain saddle
  • Pack of tubes
  • Detachable power supply
  • User manual

Warranty Information

  • 12 Months
Ecosoft Under Sink RO System Manual
Ecosoft Cross 90 Manual

PDF Installation Instructions
Ecosoft Filter Technical Sheet

Full Specification

Inlet pressure 2-5 bar
Inlet water temperature +5 up to 30°C
Capacity 1.5 L/min
Power supply 230 V, 50 Hz
System weight 11 kg
Permissible ambient temperature +5 up to +40°C
External connection to water supply ½″ inch
Overall dimensions (H x W x D): 435 x 140 x 458 mm
Power consumption 120 W
Electricity Required Yes

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