Fernox

The Fernox 22mm UB Filter is a high-performance, inline system filter designed to protect your heating system from harmful debris and sludge. With easy installation and maintenance, this durable filter ensures optimal efficiency and extends the lifespan of your boiler and components.

The Fernox TF1 Sigma HP Filter 62615 is a high-performance, 28mm filter designed to protect Air and Ground Source Heat Pump systems. Its unique, patent-pending technology removes all types of system debris without restricting flow, preserving energy efficiency and system performance. Built from durable, hydrolysis-resistant polymer with full bore brass valves for superior reliability.

The Fernox F7 Biocide is a powerful treatment designed to eliminate and prevent bacterial and fungal growth in central heating systems. This easy-to-use biocide ensures a clean and efficient system, enhancing performance and extending the lifespan of your heating components.

The Fernox TF1 Antifreeze Valve 28mm is a high-quality valve designed to protect central heating systems from freezing temperatures. Easy to install and maintain, this durable valve ensures continuous operation and prevents costly damage during winter months.

The Fernox TF1 Sigma UB Filter 62631 is a compact under-boiler filter with a brass manifold, designed for tight spaces and concealed pipework. Built from durable, high-performance polymer and forged brass, it offers effective debris removal, easy cleaning via a 3-way valve, and flow efficiency—ideal for protecting modern heating systems in space-restricted installs.

Achieve reliable seals with Water Hawk Jointing Compound 400g. This compound ensures secure joint connections in plumbing and heating systems. Easy to apply and resistant to high temperatures, it's ideal for both DIY enthusiasts and professional plumbers.

The Fernox Electrolytic Compression Scale Reducer 15mm provides whole-house protection against lime scale build-up, using electrolytic principles to alter the structure of hardness salts. Effective for up to 10 years, this easy-to-install solution safeguards appliances like boilers, kettles, and showers, enhancing energy efficiency and performance in hard water areas.

The Fernox Electrolytic Scale Reducer 62552 offers whole house limescale protection using electrolytic technology. Designed for 22mm pipework, this maintenance-free, WRAS-approved unit alters hardness salts to prevent scale in boilers, kettles, and showers. Durable nickel-plated brass construction provides up to 10 years of reliable protection in hard water areas.

Antifreeze Protector Alphi-11 5 Litre (Product Code: 61033) is a premium combined antifreeze and inhibitor solution, designed to protect domestic central heating systems against internal corrosion and limescale. Suitable for all common system materials, Alphi-11 ensures long-lasting performance when concentration levels are maintained annually. Protects to -11°C at 25% concentration and to -22°C at 40%. Easy to apply and compatible with all Fernox products.

Fernox Powerflow Paste 350g is a premium, WRAS-approved soldering flux designed for copper plumbing systems. This soft, white paste is easy to apply and effective for both lead-containing and lead-free solder alloys. Ideal for use with end feed and integral ring solder fittings, it ensures a clean, efficient joint and is suitable for potable water applications. With self-cleaning properties, it’s perfect for both hot and cold water systems.

The Fernox TF1 Total Filter is an award-winning hydrocyclonic and magnetic in-line filter designed to remove both magnetic and non-magnetic contaminants from central heating systems. Constructed from high-strength composite plastic, this filter is easy to install, clean in minutes, and doesn’t restrict flow. With a 5-year warranty and efficient contaminant collection, the TF1 Total Filter ensures optimal system performance without the need for disassembly.

The Fernox TF1 Total Filter is an award-winning hydrocyclonic and magnetic in-line filter designed to remove both magnetic and non-magnetic contaminants from central heating systems. Constructed from high-strength composite plastic, this filter is easy to install, clean in minutes, and doesn’t restrict flow. With a 5-year warranty and efficient contaminant collection, the TF1 Total Filter ensures optimal system performance without the need for disassembly.

The Fernox Leak Sealer – External 50g (LSX 61016) is a high-performance solution for sealing leaks in plumbing and heating systems. Designed for quick, external application, it provides a durable and reliable seal without the need to drain the system. Ideal for professional plumbers and DIY users, this leak sealer ensures efficient repair and long-lasting protection. Shop Plumbco for trusted Fernox products with fast delivery.

Fernox Hawk White 400g 61024 is a fast-acting cleaning compound for central heating systems, effectively removing sludge, rust, and limescale. Safe for all metals commonly used in heating systems, it improves circulation, enhances efficiency, and extends the life of boilers and radiators. Ideal for both domestic and commercial heating maintenance.

Ensure your boiler and central heating system stay safe and efficient with the Fernox System Health Check Kit (61161). This convenient postal testing service provides a full laboratory analysis of your system water, identifying corrosion, debris, and chemical imbalances. Fast results, expert recommendations, and online access make it an essential tool for long-term boiler health and protection.

The Fernox TF1 Omega Filter 62248 is a high-performance magnetic system filter designed for compact installations. Using Hydronic Particle Separation (HPS) and a powerful neodymium magnet, it efficiently captures magnetic and non-magnetic debris to protect boilers and improve system lifespan. Durable, easy to clean, and backed by a 25-year warranty.

The Fernox TF1 Omega Filter 62249 with valves is a compact, high-efficiency brass system filter designed to protect boilers from magnetic and non-magnetic debris. Featuring Hydronic Particle Separation (HPS) technology and a powerful neodymium magnet, it ensures optimal central heating performance. Easy to install on 22mm pipework and backed by a 25-year warranty.

The Fernox Magnetic Scale Reducer 62302 is a WRAS-approved, in-line compression unit designed for 22mm pipework to protect boilers and appliances from scale buildup. Using powerful magnetic technology, this nickel-plated brass scale reducer requires no maintenance and offers up to 10 years of protection in hard water areas. Ideal for single appliance use.

Fernox Protector F1 265ml provides long-term protection against corrosion and limescale in central heating systems. Suitable for all boiler types and mixed metal systems, including aluminium, this eco-friendly, compact size treats up to 100L systems or 12 radiators. Easy to dose via a Fernox TF1 Filter, it optimizes system efficiency, prevents common issues like radiator cold spots, and meets BS 7593:2019 standards for system care.