About Us Contact Us Easy Returns Privacy Shipping Terms of Service
Skip to content
A whole house water filter installed under a sink

Whole House Filters

Whole-home water filtration

Cleaner Water at Every Tap

Treat the incoming water supply before it branches around your property. Compare multi-stage systems, high-flow filter housings and UV treatment for UK homes.

Property-wide treatment Systems for different water concerns UK delivery and expert support
Find the right system
Whole-house water filtration system supplying water throughout a modern home

Start with your water

What Do You Want the System to Address?

The correct treatment depends on the incoming water and the result you want. Do not choose a system only by price or the number of filter stages.

01

Chlorine, Taste and Odour

Activated-carbon and specialist media can improve taste and reduce specified chemical contaminants when supported by the cartridge’s performance data.

02

Sediment and Rust

Sediment filtration captures suspended particles and can help protect downstream cartridges, taps and water-fed appliances.

03

Several Water Concerns

A multi-stage system combines different media in sequence. Each stage has a defined job, so check the claimed reduction data for the complete system.

04

Microbiological Risk

UV treatment may form part of a private-supply treatment train, but it does not remove sediment or chemicals. Water testing and suitable pre-filtration are essential.

Compare the formats

Which Type of Whole-House Treatment Do You Need?

This collection contains complete systems, specialist treatment and compatible replacement cartridges. They are not interchangeable.

Broad filtration

Multi-Stage Cartridge Systems

Multiple full-flow housings combine sediment, carbon or specialist media for broader treatment across the property.

  • Several treatment stages
  • Requires space for housings and servicing
  • Cartridges may have different change intervals
View multi-stage systems
Compact treatment

Single-Housing Filters

A high-flow housing such as the Aquaphor Viking format uses a compatible cartridge selected for the required treatment duty.

  • Smaller installation footprint
  • Performance depends on the fitted cartridge
  • Flow and capacity must suit the property
View filter housings
Specialist treatment

UV Water Treatment

UV systems are designed to inactivate susceptible microorganisms. They require power, correct flow sizing and water clear enough for effective UV transmission.

  • Does not remove chemicals or sediment
  • Lamp and quartz sleeve require maintenance
  • Private supplies should be tested first
View UV treatment

Before comparing products

Four Checks That Determine the Right System

1

Water source and quality

Confirm whether the supply is treated mains water or private water. Use a current water report or laboratory test where appropriate.

2

Peak household flow

Size for simultaneous demand from showers, taps and appliances—not only average daily consumption.

3

Pipework and pressure

Check connection size, available pressure and the manufacturer’s flow data to avoid unnecessary restriction.

4

Service access and cost

Allow room to isolate the system, remove housings and replace cartridges. Compare ongoing filter and lamp costs before ordering.

Compare the collection

Shop Whole-House Water Filters

Review complete filtration systems, specialist UV treatment and compatible replacement cartridges below.

Installation planning

What to Check Before Buying

A whole-house system becomes part of the main plumbing. Confirm the installation requirements before choosing a product.

Suitable location

Choose a frost-protected position near the incoming main, with enough space for the system, isolation valves and routine servicing.

Flow and pressure

Compare service-flow data with peak household demand. Undersizing can reduce flow when several outlets operate together.

Bypass and isolation

A practical installation should allow the filter to be isolated or bypassed for cartridge changes without unnecessary disruption.

Drain and electrical needs

Standard cartridge housings normally need neither, but UV and other specialist systems may require a nearby electrical supply.

Do not confuse the two

Whole-House Filter or Water Softener?

A whole-house filter targets specified contaminants such as sediment, chlorine, taste or odour according to its media. A salt-based softener removes calcium and magnesium hardness through ion exchange.

If your priority is preventing limescale, compare water softeners or water conditioners rather than assuming a standard carbon filter will soften the water.

Compare water softeners Compare water conditioners

Plan with confidence

Whole-House Filtration Guides

Installation Planning and Placement

Plan the location, pipework, access, pressure and bypass arrangement before installation.

Continue Reading →

Filter Types and Selection

Compare sediment, carbon and multi-stage filtration against the water concern you need to address.

Continue Reading →

Maintenance and Easy Fixes

Understand cartridge changes, pressure checks, seals and routine servicing after installation.

Continue Reading →

Straightforward answers

Whole-House Water Filter FAQs

What does a whole-house water filter remove?

It depends entirely on the filter media and tested performance. Sediment cartridges capture suspended particles, while activated carbon can reduce chlorine, taste and odour. Specialist media may target other named contaminants. Check the exact product specification rather than relying on a general “whole-house filter” claim.

Will a whole-house filter remove limescale?

A standard sediment or carbon filter does not remove the dissolved calcium and magnesium that cause water hardness. Choose a water softener if you want those minerals removed, or compare a water conditioner if you want salt-free scale control.

Will whole-house filtration reduce water pressure?

Every filter creates some resistance. A correctly sized system should be selected around the property’s peak flow, pipe size, incoming pressure and the pressure-drop data published for the housing and cartridges.

Do I need UV treatment?

UV is generally considered where microbiological contamination is a concern, particularly on private supplies. It does not remove sediment or chemicals, and unsuitable water quality can reduce its effectiveness. Obtain appropriate water testing and professional treatment advice before specifying a UV system.

How often do whole-house filters need replacing?

Replacement intervals vary by cartridge, water quality and usage. Some filters are changed every 6–12 months, while specialist cartridges can last longer. Follow the limit stated for the exact cartridge and replace it sooner if performance or flow deteriorates.

Does Regal Flow install whole-house filters?

Regal Flow does not provide an in-house installation service. We can advise on product requirements and may be able to introduce you to an independent installer, depending on your location.

Friendly expert support

Need Help Choosing the Right System?

Tell us whether you have mains or private water, the issue you want to address, your pipe size, peak flow and available installation space. We will help narrow the suitable options before you order.

Contact Support Team
Emailinfo@regalflow.co.uk Telephone0121 630 1130 WhatsAppMessage our support team