10 Best Magnetic Filter Central Heating in The UK

Last updated on 07/08/2025
Advertising disclosure
Best Choice
1
9.8
Exceptional
Spear & Jackson Boilermag Magnetic Heating System Filter, 22 mm
Spear & Jackson
Spear & Jackson Boilermag Magnetic Heating System Filter, 22 mm
Free Shipping
Why We Love It
  • Enhances boiler performance significantly.
  • 360-degree installation flexibility.
  • Prevents sludge and scale buildup.
Main Highlights
  • Improves heating efficiency and increases boiler life
  • In-line installation with 360 degrees adjustment
  • Extracts sludge and scale
  • No block feature
  • Features good performance magnetic technology
9.8
Exceptional
Amazon Logo
Best Value
2
9.6
Superb
Magnaclean Pro 1 Filter Chemical Pack (MC1 and MC3) FL1-03-01868
Magnaclean
Magnaclean Pro 1 Filter Chemical Pack (MC1 and MC3) FL1-03-01868
Why We Love It
  • Effective cleaning and protection.
  • Includes essential MC1 and MC3.
  • Ideal for heating system maintenance.
Main Highlights
  • Complete with MC1 and MC3 chemicals
  • Cleans and protects central heating systems
  • Item Package Quantity: 1
9.6
Superb
Amazon Logo
3
9.5
Superb
Fernox Tf1 Total Magnetic Filter 28Mm Central Heating Sludge Remover Bnib
Fernox
Fernox Tf1 Total Magnetic Filter 28Mm Central Heating Sludge Remover Bnib
Why We Love It
  • Efficient central heating protection.
  • Strong magnetic sludge removal.
  • High-quality HVAC filtration.
Main Highlights
  • Fernox Tf1 Total Magnetic Filter 28Mm Central Heating Sludge Remover Bnib
  • Brand: Fernox
  • Product type: HVAC AIR FILTER
9.5
Superb
Amazon Logo
4
9.3
Superb
Magnetic Filter for Boilers or Underfloor Heating Manifold Systems 22mm Valves
Wärmer System
Magnetic Filter for Boilers or Underfloor Heating Manifold Systems 22mm Valves
Free Shipping
Why We Love It
  • Uniquely versatile central heating filter.
  • Space saving under boiler.
  • Fitted in almost any position.
Main Highlights
  • Protects System Efficiency - Captures and removes metal particles, rust, and debris from boiler or underfloor heating water to prevent system clogging and wear.
  • Powerful Magnet Technology - Uses a high-strength magnet to attract and trap metallic impurities, keeping water circulating smoothly.
  • 22mm Valve Compatibility - Designed with 22mm valves, compatible with standard piping for most residential and commercial heating systems.
  • Easy Installation - Quick and straightforward setup with simple connections to existing pipes, minimizing the need for extensive system modifications.
  • Increases System Lifespan - Helps reduce wear on pumps, valves, and heat exchangers by preventing buildup of harmful sludge.
  • Improves Energy Efficiency - Reduces boiler strain and energy consumption by maintaining optimal water flow and heat transfer.
  • Low Maintenance - Requires minimal upkeep; easy-to-clean design allows for convenient and quick sludge removal.
  • Corrosion Resistance - Built with high-quality, corrosion-resistant materials to withstand harsh conditions within heating systems.
  • Universal Compatibility - Suitable for various heating systems, including central boilers and underfloor heating systems, enhancing versatility.
  • Cost Savings - Reduces maintenance costs by preventing costly repairs or premature system replacements due to internal corrosion and clogging.
9.3
Superb
Amazon Logo
5
9.2
Superb
Magnetic Boiler Filter 22mm - Ovington Magnetic Filter for Central Heating Magnetic System Brass 10000Gauss Sludge Removal Capture Rust and Other Debris
ovington
Magnetic Boiler Filter 22mm - Ovington Magnetic Filter for Central Heating Magnetic System Brass 10000Gauss Sludge Removal Capture Rust and Other Debris
Why We Love It
  • Removes harmful metal particles.
  • Provides high pressure efficiency.
  • Easy installation and maintenance.
Main Highlights
  • Eliminating iron, nickel, and cobalt particles from the water.
  • Maximum pressure: 10 bar.
  • Magnetic field of the rod: 10,000 gauss.
  • Ensuring reliable protection for the boiler system.
  • Connection 2 x ball valves - Ø22 compression
  • Simple to install and easy to clean.
9.2
Superb
Amazon Logo
6
9.1
Superb
SPARES2GO Magnetic Boiler Filter Inline with 22mm Brass Threaded Connections
Spares2go
SPARES2GO Magnetic Boiler Filter Inline with 22mm Brass Threaded Connections
Why We Love It
  • Saves up to 6% energy.
  • Extends system longevity.
  • Easy to install.
Main Highlights
  • Magnetic Boiler Filter with 22mm Brass Connections made for SPARES2GO
  • As water passes through the metal pipes of your boiler, rust can form. Combine this rust with other dirt and debris, it eventually builds into a mud-like substance, otherwise known as ‘sludge’. If this sludge isn’t removed it can have a real impact on the day-to-day use of your heating system. A magnetic filter will help reduce the build up of iron, nickel and colbalt particles in your system and saves up to 6% energy per annum. This filter can be easily drained and is easy to clean.
  • Specification: Removes iron, nickel and cobalt particles -- Saving energy by up to 6% per annum Consistent protection for the heating system Reduces carbon emissions Saves on maintenance costs -- Extending longevity of the system -- No extra operating cost -- Easy to install and clean -- Conveniently mounts into one 22mm pipe Horizontal or Vertical pipe mounting options
  • Pack Contents: 1 x Magnetic Filter Body, 2 x 22mm Brass Isolation Valves, 1 x Fitment Spanner, 2 x Valve Washers
  • Premium quality, fully compatible replacement / spare part
9.1
Superb
Amazon Logo
7
8.9
Excellent
Altecnic Caleffi XS Under Boiler Magnetic Filter 22mm 545912
Generic
Altecnic Caleffi XS Under Boiler Magnetic Filter 22mm 545912
Free Shipping
Why We Love It
  • Compact design, space-saving solution.
  • Easy visual health check.
  • Quick and easy servicing.
Main Highlights
  • Compact under boiler magnetic filter
  • Glass indicators/windows allow for easy visual system health check
  • Internal isolation valve designed so only water in the collection chamber is drained before cleaning the mesh, for quick and easy servicing
  • Internal magnet and mesh for effective filtration
  • Suitable for horizontal and vertical installation
  • Medium: water, glycol solution
  • Max. percentage of glycol: 30%
  • Max. working pressure: 3 bar and Working temperature range: 0 to 90˚C
  • Filter mesh: 800 μm
  • Connection – 22mm compression: BS EN 12165 CW617N
8.9
Excellent
Amazon Logo
8
8.8
Excellent
HTS - Central Heating Magnetic System Boiler Filter AFM-08 (22mm Ball Valves, 1200 Gauss)
HTS
HTS - Central Heating Magnetic System Boiler Filter AFM-08 (22mm Ball Valves, 1200 Gauss)
Why We Love It
  • High-performance magnetic filtration.
  • Durable full-bore ball valves.
  • Compact and easy installation.
Main Highlights
  • High-Performance Magnetic Filtration (1200 Gauss) The AFM-08 features a powerful 1200 Gauss magnet that captures even the finest iron oxide sludge particles before they circulate through your system, dramatically reducing wear and tear on key components.
  • Durable 22mm Full-Bore Ball Valves Equipped with robust 22mm ball valves, the filter ensures full-bore flow for minimal pressure loss, easy isolation, and simple servicing—ideal for modern, high-efficiency systems.
  • Compact and Easy to Install Designed for versatility and convenience, the compact body fits easily into tight spaces without sacrificing performance. It’s compatible with most UK domestic boilers and includes all necessary fittings.
  • Improves Boiler Lifespan and Energy Efficiency By preventing the accumulation of harmful debris, the AFM-08 helps maintain system cleanliness, improves heat transfer, and lowers energy consumption—saving money on bills and reducing carbon emissions.
  • Tool-Free Maintenance with Easy-Access Cap The innovative design includes a tool-free removable top for fast, hassle-free cleaning and inspection. Regular maintenance can be done in minutes, keeping your system protected year-round.
8.8
Excellent
Amazon Logo
9
8.7
Excellent
Boiler-m8 Defender-2 22mm Magnetic Boiler Filter Central Heating Inhibitor and Cleaner Concentrate Pack Fluid Prevents Corrosion and Lime Scale Improves Heating Efficiency
Boiler-m8
Boiler-m8 Defender-2 22mm Magnetic Boiler Filter Central Heating Inhibitor and Cleaner Concentrate Pack Fluid Prevents Corrosion and Lime Scale Improves Heating Efficiency
Why We Love It
  • Prevents corrosion and lime scale.
  • Improves heating system efficiency.
  • Suitable for large systems.
Main Highlights
  • Combo-Pack: The Pack includes magnetic boiler filter, inhibitor concentrate and cleaner liquid which helps to prevent corrosion and lime scale everything you need for Part L Building Regulation and BS 7593:2019 compliance.
  • Perfect Defender for your System: The new Boiler-m8 magnetic system filters defend your heating system by combining high strength magnetic and stainless steel particle filtration that’s easy to service and maintain.
  • Efficient Debris Removal: Sludge and lime scale deposits from the walls of radiators and pipes can be cleaned and removed with the help of this heating systems cleaning solution, which is intended for professional use.
  • Concentrated Liquid: This extremely concentrated inhibitor was created to treat bigger systems up to 100L (approx 10 radiators). Our liquid inhibitor contains a content that prevents corrosion and scaling and reduce noise.
  • Enhance System Performance: Using cleaner fluid and concentrate liquid extends the lifespan of heating appliances, improves the heating system's efficiency, and reduces fuel use. Suitable for systems up to 100 litres
8.7
Excellent
Amazon Logo
10
8.7
Excellent
Heatmag Central Heating Magnetic Brass Filter 22mm With Valves
HEATMAG
Heatmag Central Heating Magnetic Brass Filter 22mm With Valves
Why We Love It
  • 25 years of reliable warranty.
  • Quick and simple installation.
  • Durable brass construction for longevity.
Main Highlights
  • 25 years manufacturers warranty.
  • Can be fitted within minutes after draining.
  • Service annually without disassembly
  • Easy access for chemical dosing
  • Fits horizontally and vertically
  • Incorporated isolating valves
  • 10,000 gauss magnet
  • Easy inline installation
  • Robust brass body
8.7
Excellent
Amazon Logo

Related Deals You Might Like for Magnetic Filter Central Heating

Free Shipping
Boiler-m8 Defender-2 Central Heating Magnetic System Boiler Filter and Inline Full Bore Valves for Sludge Removal 22mm
Amazon

Boiler-m8 Defender-2 Central Heating Magnetic System Boiler Filter and Inline Full Bore Valves for Sludge Removal 22mm

Perfect filter: A remarkably versatile central heating filter made to address the issues brought on by magnetic system sludge.
Magnetic Boiler Filter 22mm Inline for Central Heating inc Full Bore Valves with Metal Handle - Team Supplies TSFILTER
Amazon

Magnetic Boiler Filter 22mm Inline for Central Heating inc Full Bore Valves with Metal Handle - Team Supplies TSFILTER

Magnetic Boiler Filter 22mm Inline for Central Heating inc Full Bore Valves with Metal Handle Team Supplies TSFILTER
7% Off
Magnetic Boiler Filter 22mm Inline Sludge Remover for Central Heating Systems - Includes Isolating Valves - NEW Improved 12000 Gauss Magnet TC-FILTER v2
Amazon

Magnetic Boiler Filter 22mm Inline Sludge Remover for Central Heating Systems - Includes Isolating Valves - NEW Improved 12000 Gauss Magnet TC-FILTER v2

Removes Iron, Nickel and Cobalt Particles in the Water
5% Off
Free Shipping
Team Controls Micro Magnetic Compact Boiler Filter 22mm for Central Heating Mini Filter TC-MICRO
Amazon

Team Controls Micro Magnetic Compact Boiler Filter 22mm for Central Heating Mini Filter TC-MICRO

Compact design for easy installation and maintenance
Free Shipping
Magnetic Boiler Filter 22mm - VANCOCO Magnetic Filter for Central Heating Magnetic System Brass 9000Gauss Sludge Removal Capture Rust and Other Debris
Amazon

Magnetic Boiler Filter 22mm - VANCOCO Magnetic Filter for Central Heating Magnetic System Brass 9000Gauss Sludge Removal Capture Rust and Other Debris

PREMIUM QUALITY - VANCOCO magnetic boiler filters are made of excellent brass and are very durable. Effectively removes iron, nickel and cobalt particles from water.Intensity up to 9000 Gauss.
Free Shipping
Kudos-Trading - Magnetic Filter 22mm Central Heating Water Underfloor Heating Manifold System Protection Mag Sweeper High-Efficiency Magnetic Filtration System for Central Heating Systems
Amazon

Kudos-Trading - Magnetic Filter 22mm Central Heating Water Underfloor Heating Manifold System Protection Mag Sweeper High-Efficiency Magnetic Filtration System for Central Heating Systems

High-Efficiency Filtration: The 22mm magnetic filter offers superior filtration of magnetic and non-magnetic debris, ensuring a cleaner and more efficient central heating system. Using high-intensity magnets, this filter captures even the smallest particles that could otherwise cause system blockages or inefficiencies.
Free Shipping
HTS Boiler Magnetic Filter Lid Universal Removal Tool/Plumbing Tool/Boiler Maintenance Tool
Amazon

HTS Boiler Magnetic Filter Lid Universal Removal Tool/Plumbing Tool/Boiler Maintenance Tool

Universal Fit: The HTS Boiler Magnetic Filter Lid Removal Tool is designed to be compatible with a large variety of Boiler Magnetic Filters
Free Shipping
WY Boiler Magnetic Filter Lid Universal Removal Tool Spanner Wrench, Fits Adey Magnaclean, Fernox TF1 and Many More
Amazon

WY Boiler Magnetic Filter Lid Universal Removal Tool Spanner Wrench, Fits Adey Magnaclean, Fernox TF1 and Many More

This WY Universal Tool Fits Virtually All Boiler Magnetic Filters Such As
Free Shipping
PlumbEZ Multi-Orientation Magnetic Boiler Filter 22mm Central Heating Sludge Remover 12000 Gauss Magnetic Heating Filter with Fitting Kit, Full Bore Brass Valves, Heat Resistant Seals 3 Year Warranty
Amazon

PlumbEZ Multi-Orientation Magnetic Boiler Filter 22mm Central Heating Sludge Remover 12000 Gauss Magnetic Heating Filter with Fitting Kit, Full Bore Brass Valves, Heat Resistant Seals 3 Year Warranty

Versatile Installation: Our magnetic heating filter is designed for flexible installation, allowing you to set it up either horizontally, vertically or at a 45. This ensures seamless integration into any heating system, enhancing the performance of your central heating magnetic filter setup.
Teams Magnetic Boiler Filter 22mm Inline for Central Heating + Inhibitor & Cleaner
Amazon

Teams Magnetic Boiler Filter 22mm Inline for Central Heating + Inhibitor & Cleaner

Actively Filters Magnetite & Non-Ferrous System Debris

We scanned 621 products

We reviewed these offers relevant to the Magnetic Filter Central Heating within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Spear & Jackson, Magnaclean, Fernox, Wärmer System, ovington, Spares2go, Generic, HTS, Boiler-m8, HEATMAG, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.
For the best Magnetic Filter Central Heating in the market, we considered we took a deep dive into 3106 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

  • The clear winner of our analysis is Spear & Jackson Boilermag Magnetic Heating System Filter, 22 mm. We love many things about this product by Spear & Jackson. What sets it apart from the competition is Enhances boiler performance significantly. , 360-degree installation flexibility. , Prevents sludge and scale buildup.
  • The best value product for most shoppers and where user satisfaction is continuously the highest is Magnaclean Pro 1 Filter Chemical Pack (MC1 and MC3) FL1-03-01868 by Magnaclean based on online reviews by bloggers, experts and online shoppers.
  • The biggest bargain at the moment for Magnetic Filter Central Heating and the best cost-to-value ratio is Heatmag Central Heating Magnetic Brass Filter 22mm With Valvesat HEATMAG with a % discount.
  • Our list of the best Magnetic Filter Central Heating is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.