TF1 Compact Filter with Protector+ Filter Fluid F9

Warranty: 5 Year (s)

A high-performance, magnetic in-line system filter, the TF1 Compact Filter is ideal for small and restricted spaces. This simple to install, composite plastic filter fits onto vertical and horizontal pipework in multiple orientations. Its design enables the capture of both magnetic and non -magnetic debris by using hydrocyclonic action and specifically engineered magnet assemblies to collect and contain debris within the filter before safe removal. Fast and mess-free cleaning via the drain valve in less than 2 minutes – no need to dismantle the unit. Supplied with an enhanced inhibitor product, Protector+ Filter Fluid F9, which includes a dispersant to maximise the effectiveness of a filter in collecting debris. The complementary role of the chemical and filter provides the ultimate in boiler and system protection.

  • High performance, precision engineered, hydrocyclonic and magnetic in-line system filter to remove magnetic and non-magnetic contaminants from system water
  • Ideal for use in small, restricted spaces and access areas
  • Includes 500ml bottle of Fernox Protector+ Filter Fluid F9 to aid the effectiveness of a filter to capture debris from the system water
  • Innovative inhibitor plus dispersant chemical water treatment provides ongoing boiler protection against circulating debris
  • Fits vertical and horizontal pipe work. All valves and fittings included
  • 5 year warranty
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Product Overview

The TF1 Compact Filter is constructed using an engineering polymer, suitable for heating and cooling system applications. The glass reinforced polymer has good hydrolysis resistance, as well as high resistance to strain and abrasion. The polymer is compatible with glycols and additives used in central heating systems.

The TF1 Compact Filter has been designed to ensure there is minimal pressure loss in addition to maintaining a high collection efficiency. The unique Hydrocyclone, magnet assembly and area of low flow have all been engineered to allow the filter to capture a range of system contaminates, whilst not impacting the rest of the heating system.

The TF1 Compact Filter utilises a range of high-quality component parts that ensure the filter offers optimum performance. All isolation valves are designed to allow users to operate them easily by hand, whilst also providing a secure connection to the system and service point. The magnet is manufactured using a premium grade of neodymium, enabling a high-efficiency capture rate, as well as a robust filtration that will ensure a continued and consistent level of collection.

Application, Fitting & Dosing

The TF1 Compact Filter can be connected directly to the pipework using the valve fittings provided. The filter can be installed in any one of 24 separate orientations enabled by its unique inlet/outlet mechanism. The Fernox TF1 Compact Filter (UK patent granted No.2448232) is a revolutionary in-line filter, which combines Hydrocyclonic action with specially designed magnet assemblies, to remove both magnetic and non-magnetic contaminants from system water and contain safely within the filter before removal. The filter can be installed on vertical or horizontal pipework, in accordance with the flow direction indicated by the arrow on the manifold. The filter is designed to protect the boiler from the damaging effects of circulating corrosion debris, which has collected in the system as a result of a chemical reaction when water comes into contact with mixed metals used within a heating and cooling system. Ideally the filter should be fitted on the return to the boiler and can be installed at up to 45⁰ from the vertical position if space or head height is restricted.

Package, Handling & Safety

As with all magnetic products, if you have an implanted cardiac device extra caution should always be taken when handling any magnetic filter.

Fernox Protector+ Filter Fluid F9 is supplied in 500 ml bottles.

Fernox Protector+ Filter Fluid F9 is classified as non-hazardous for human health, but as with all chemicals, keep out of reach of children. In case of contact with eyes or skin, rinse immediately with plenty of water.


Suitable Fluids:
Inhibited Glycol Solutions
Fernox Chemical Range / System Additives
Maximum Percentage of Glycol: 50%

Maximum Working Pressure: 50 L/min
Maximum Working Temperature: 100⁰C
Capture Rate: Up to 100% of system contaminates

Operating Principle
Contaminated water enters the filter via the manifold, carrying a variety of system debris and particulate matter held in suspension. This debris, including ferrous impurities such as Magnetite, move through the manifold and into the main body of the filter.

The TF1 Compact Filter utilises Hydrocyclonic filtration. A Hydrocyclone is a static device that applies centrifugal force to a liquid mixture to promote the separation of particles.

The Hydrocyclonic action has been designed to convert incoming liquid velocity into rotary motion. As water enters the filter, it spins around and down the outside of the filter, carrying particles with it. The shape of the filter has been designed to create a low flow zone at the bottom where heavier particles are deposited.

The Hydrocyclone in the TF1 Compact Filter has been optimised in order to allow for the maximum filtration ability of both magnetic and non-magnetic material.

Once the flow of water has reached the bottom of the filter, water moves back up through the centre of the TF1 Compact Filter, carrying particles over the magnet sheath, promoting further magnetic filtration and enhancing the collection capabilities of the filter.

Any dirt collected within the filter can then be discharged by removing the magnet from the sheath and opening the drain valve. This procedure is shown in the cleaning guide and does not require system shutdown, or for the filter to be disassembled.

Physical Specification / Properties

Filter Body – Glass filled, engineering polymer
Manifold – Glass filled, engineering polymer
Drain Valve – Nickel plated brass
Isolation Valves – Nickel plated brass
Circlip – Stainless Steel
Seals & Washers – EPDM

Fernox Protector+ Filter Fluid F9 is a blend of corrosion and scale inhibitors and dispersants.
Form: Liquid
Odour: Aromatic
Colour: Light Yellow
pH (conc): 8.3
pH (in use): 7.8-8.5
SG: 1.135 at 20°C

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Cleaning Diagram
Dimensions Diagram
Dosing Diagram
Fitting Diagram
Pressure Differential Graph

This is an innovative, universal inhibitor package which uses the proven inhibition qualities of Fernox Protector F1 with an active dispersant.

This unique formulation is designed to detect, lift and deliver magnetic and non- magnetic debris to an in- line system filter.