The Filtrex System is an automatic, self-cleaning, backwashable industrial filtration system. Our patented wafer and candle technology provides industry leading filtration solutions proven to work. The thermoplastic wafers are permanently reusable, which means no costly throwaway media like cartridges or paper, and no harm done to the environment. In addition, we offer a complete array of filtration products such as industrial strainers, cartridge filters, bag filters, deaerators, pipes and fittings, valves, and more. Contact Us to start your custom quote now.

The proprietary Filtrex System possesses several key advantages over conventional filtration media, including: reduced operational costs and operator interface, minimization of hazardous waste production and handling, permanent filter media, automatic backwash cycle with minimal fluid requirements, custom design and engineering tailored specifically to meet your requirements, skid mounted systems for ease of connection, field tests to prove the successful application of our filters, and an experienced team with years of experience solving filtration issues worldwide. Click to find out more.

Filtrex Systems leads the way in defining custom industrial filtration solutions for a wide variety of applications. Proven solutions include filtration of: process water, cooling water, wastewater, chemical fluids, rainwater and stormwater, petroleum, steel and aluminum mill waters, liquid natural gas (LNG), peppermill process fluids, intake water, industrial coolants and lubricants, food and beverage process water, nuclear wastewater, municipal intake, resins, mining water, reverse osmosis (RO) saltwater pretreatment, amongst others. Learn more about our Applications.


Filtrex Systems is dedicated to helping its worldwide customers ensure fluid purity in their products and processes. For over 25 years, Filtrex has built an exceptional service reputation based on performance, reliability, and customer satisfaction throughout the world. Our patented, automatic self-cleaning filters are designed and manufactured in the United States of America in Attleboro and Leominster, Massachusetts and can be custom designed to meet any filtration needs. Prior clients span a wide variety of industries and countries. Learn more About Us and our Clients.







Redefining Filtration: Our Design...

two filtrex candles

Our automatic self-cleaning filtration systems are both cost-effective and environmentally friendly. The key to our system’s superior perfomance lies within the patented Filtrex wafer-and-candle system.

Our Filtrex disc filters boast a number of advantages over other filtration media, including a higher open ratio, allowing optimal flow over a smaller surface area. Depending on the application, each wafer has up to two thousand microgrooves etched on each of its arched surfaces, allowing for precise filtration and maximum utilization of the wafer’s surface area. Barring abnormal applications, the thermoplastic wafers are permenantly re-usable, which means no costly throw-away media like cartridges or paper, and no harm done to the environment. They have the ability to self-clean during the automatic backwash cycle which minimizes system maintenance.

Backwash Cycle: How it Works...

backwash cycle

Depending on the application, the Filtrex candles are grouped into a vessel, which contain anywhere from a single candle to as many as several hundred. The vessels consist of an upper and lower chamber. During the continuous service cycle,the unfiltered fluid enters from the lower chamber, flowing across the candles where filtration will occur. The process water enters the candles through the microgrooves where the contaminants are intercepted, and then flows upwards through the cavities in the wafer candles. The filtered fluid is transported through these cavities into the upper chamber and out to the service connections. As the service cycle continues, the contaminants will cake on to the candle surface, ultimately causing the differential pressure between the two chambers to increase until it reaches a user-defined value, at which point the backwash cycle will be initiated.

Once backwashing is initiated, the clean chamber is pressurized using air, or other gas media, to ranges between 50-120 psi. The drain valve is opened, and the pressurized fluid flows in reverse at high velocity. This creates instantaneous compression of the candle spring, which separates the wafers and breaks up the contaminant cake, cleaning the filter in under a minute using a minimal amount of the clean fluid. Once clean, the service cycle begins again.

All of our filtration systems are individually tailored to meet your specific needs. Filtrex has built a reputation based on performance, reliability and customer satisfaction throughout the world. Contact us today with any questions regarding our products or services.


Petrochemical applications


Filtrex self-cleaning filters provide chemical and petrochemical processors with the ability to meet plant demands for dependable fluid flow, safety, quality, and continuous productivity. Applications include filtration of cooling tower fluids, utility & intake water, wastewater, and reclaimed/recycled fluids.

Metal Applications


Steel and aluminum process water requirements demand effective and scalable automatic self-cleaning filtration solutions. The Filtrex System meets the needs of metal processors and continuous casting operations by providing industrial fluid filtration for cooling, cleaning, lubricating, and more.

Process Water Applications

Industrial Process

At Filtrex Systems, we understand that unscheduled plant maintenance results in considerable production losses. Our industrial manufacturing solutions help to increase process efficiency and overall uptime by providing reliable filtration for cooling fluids, lubricants, wastewater, and process water.

Marine Applications


Filtration requirements for marine applications present unique challenges which Filtrex helps our partners overcome. Our custom-designed solutions include applications for seawater filtration, cooling water filtration for liquid natural gas transportation, engine oil filtration, and more.

Oil and Gas Applications

Oil and Gas

As world demands for stable sources of oil and gas continue to grow, Filtrex Systems provides our partners with efficient, safe, and reliable filtration for the oil and gas processing industry. Applications include cooling and equipment protection, process fluid management, and waste treatment.

Mining Applications


Mining operations face extreme process management challenges arising from abrasive materials, high-pressure requirements and difficult operating conditions. Filtrex Systems addresses the industry's needs for process water and wastewater treatment with our automatic self-cleaning filters.

Municipal Applications


Filtrex helps municipalities to meet water filtration and desalination needs their growing populations while complying with strict regulatory requirements for intake water and wastewater treatment. Our Filtrex System has been tested and proven to comply with section 316(b) of the Clean Water Act. Learn more.

Power Applications


Filtration applications for power producers include utility & intake water, process water, wastewater, and nuclear by-product control. With stringent regulations imposed on the power industry, Filtrex Systems can help partners meet waste and emission requirements while improving efficiency and output.

Contact Us

Filtrex, Corp.
150 Bank Street, Attleboro,
MA, 02703, USA
Phone: (508) 226-7711


Our Brochure

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