
The Racor S3228TUL is a replacement element for gas spin-on fuel/water separators. It is designed to be simple to service and features a reusable clear engineering plastic or metal contaminant collection bowl with a self-venting drain. The Racor S3228TUL utilizes Racor's high-efficiency Aquabloc® engineered media, which is a blend of high-grade cellulose, resins, and a special chemical treatment. This media is waterproof and rustproof, capturing contaminants and separating water from the fuel. The filter has a micron rating of 10 and offers 98% filtration efficiency and 100% water removal.
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What You'll Learn

Racor S3228TUL's unique design
The Racor S3228TUL is a spin-on series marine replacement cartridge filter element. Its unique design makes it capable of performing in modern marine diesel and gasoline applications. The filter is designed to prevent tiny particles of dirt and water from scoring and eroding precision components, which can lead to engine damage and increased downtime.
The Racor S3228TUL features a durable electrostatically-applied powder coating that provides superior corrosion resistance. This coating helps to protect the filter body from the harsh conditions often encountered in marine environments. The filter also utilizes Racor's high-efficiency Aquabloc® engineered media, which is a blend of high-grade cellulose compounded with resins and a special chemical treatment.
Aquabloc® media is designed to reliably remove dirt and water from diesel and gasoline. It incorporates pleat-spacing corrugations and a graduated pore structure to increase dirt-holding capacity and extend filter life. The media is waterproof and rustproof, capturing contaminants and separating water from the fuel. The water droplets then fall into the fuel filter's collection bowl, which can be easily drained using the self-venting drain.
The Racor S3228TUL is available in three different micron ratings: 30, 10, and 2 microns. These different micron ratings allow the filter to meet the unique requirements of customers' engines and fuel systems. The 30-micron cartridge is ideal as a pre-filter, while the 10-micron cartridge captures more contaminants and is more effective at stopping water. The 2-micron cartridge provides maximum water removal and filtration, protecting modern injection systems.
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Compatibility with Racor Marine Spin-on Series
The Racor S3228TUL is a replacement element for Racor's Marine Spin-on Series fuel filter/water separator assemblies. The S3228TUL is compatible with Racor's line of Marine Spin-on Series and is designed for modern marine diesel and gasoline applications.
The S3228TUL exhibits exceptional removal efficiency of both bulk and emulsified water, low restriction of fuel flow, and high dirt-holding capacity. Its unique design makes it capable of performing in harsh conditions, where tiny particles of dirt and water can score and erode precision components, leading to engine damage. The filter body is protected with a durable electrostatically-applied powder coating for superior corrosion resistance.
The Racor S3228TUL spin-on filter design is simple to service and features a reusable clear engineering plastic or metal contaminant collection bowl. The water and contaminants are drained out through a self-venting drain. The S3228TUL utilizes Racor's high-efficiency Aquabloc® engineered media, which is a blend of high-grade cellulose compounded with resins and a special chemical treatment. The media is waterproof and rustproof, capturing contaminants while the specially treated surface separates and coalesces water from the fuel.
Aquabloc® elements repel water and remove solid contaminants from fuel at 98% efficiency of their micron rating. There are three different micron rating cartridges available for purchase: 30-micron, 10-micron, and "2"-micron. The 30-micron cartridge is ideal as a pre-filter to protect downstream filters from excessive contamination, while the 10-micron cartridge captures more contaminants and is more effective at stopping water. The "2"-micron cartridge provides maximum water removal and filtration and protects modern injection systems.
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Aquabloc® elements' water repellence
The Racor S3228TUL is a replacement element for gas spin-on fuel/water separators, designed for inboard and outboard applications. The filter's Aquabloc® elements offer exceptional water repellence and water-removal capabilities.
Aquabloc® is a proprietary technology from Racor, engineered with a blend of high-grade cellulose, resins, and a special chemical treatment. This unique composition gives the filter media its waterproof and rustproof properties, enabling it to effectively capture contaminants and separate water from the fuel.
The chemically treated surface of the Aquabloc® elements causes water to coalesce and form large droplets, which then fall into the fuel filter's collection bowl. This process ensures that water is effectively removed from the fuel system, preventing potential engine damage and downtime caused by water contamination.
The Aquabloc® elements in the Racor S3228TUL are rated at 10 microns and offer 98% filtration efficiency for both water and solid contaminants. This high level of efficiency helps extend the life of the entire fuel system by capturing a large proportion of harmful particles and moisture before they can reach sensitive engine components.
In addition to superior water repellence, the Aquabloc® elements also provide excellent corrosion resistance. This feature is further enhanced by the filter body's durable, electrostatically applied powder coating, which offers superior protection against the harsh conditions often encountered in marine environments.
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Filter replacement procedure
The Racor S3228TUL is a replacement element for gas spin-on fuel/water separators. It is compatible with Racor's line of marine spin-on series fuel filter/water separator assemblies. The filter body is protected with a durable electrostatically-applied powder coating for superior corrosion resistance.
To replace the filter, first drain the collection bowl of any contaminants and water using the self-venting drain. This will require a suitable container to catch the drained fluid. Next, unscrew the old filter from the assembly, being careful not to spill any remaining fluid. The new Racor S3228TUL filter can then be screwed into place by hand. Ensure that the new filter is securely fitted before turning on the fuel supply again.
The Racor S3228TUL filter is a 10-micron filter, capturing more contaminants and being more effective at stopping water than 30-micron elements. It is compatible with inboard and outboard applications and extends the life of the entire fuel system. The filter is also ethanol compatible and offers long life with 98% filtration efficiency and 100% water removal per SAE test procedures.
The Aquabloc® engineered media utilised in the Racor S3228TUL filter is a blend of high-grade cellulose compounded with resins and a special chemical treatment. It incorporates pleat-spacing corrugations and a graduated pore structure to increase dirt-holding capacity and extend filter life. The media is waterproof and rustproof, capturing contaminants and separating water from the fuel.
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Corrosion resistance
The Racor S3228TUL fuel filter is designed with corrosion resistance in mind. The filter body is protected with a durable electrostatically-applied powder coating that provides superior corrosion resistance. This coating is essential for protecting the filter from the harsh conditions of marine environments, which can cause corrosion and engine damage.
The Aquabloc® media used in the Racor S3228TUL filter is also waterproof and rustproof. It captures contaminants and separates water from the fuel, preventing the formation of corrosive acids. The water is separated through a special chemical treatment, which causes it to coalesce into large droplets that fall into the fuel filter's collection bowl. This process helps to prevent the growth of bacteria and the formation of corrosive substances.
The Racor S3228TUL filter meets the ABYC standard for gasoline-powered vessels, ensuring that it can withstand the corrosive effects of gasoline and the marine environment. The filter is designed to be used with gasoline engines and is compatible with Racor's line of Marine Spin-on Series fuel filter/water separator assemblies.
In addition to its corrosion resistance, the Racor S3228TUL filter also offers high efficiency in removing contaminants and water from fuel. It provides a 98% efficiency rating at 10 microns, capturing more contaminants than 30-micron elements and effectively stopping water. This high level of filtration efficiency helps to extend the life of the fuel system and prevent engine damage caused by corrosion and other contaminants.
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Frequently asked questions
It is a replacement element for gas spin-on fuel/water separators. It has a 10-micron rating and is designed for inboard and outboard applications.
The filter has a unique design that makes it capable of performing in modern marine gasoline applications. It has exceptional removal efficiency of both bulk and emulsified water, low restriction of fuel flow, and high dirt-holding capacity. It also has a long life, with 98% filtration efficiency and 100% water removal.
You can purchase the filter from Amazon.com, Defender Marine, and Fisheries Supply.
































