Replacement Water Filter Cartridges

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Aquaboon 5 Micron 20" x 4.5" CTO Carbon Block, KDF & Sediment Replacement Filter Cartridges Set (3 PCS) ABP-1C20BB5M-1KDF20BB-1S20BB5M

$154.79

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Aquaboon 5 Micron 20" x 4.5" Premium CTO Carbon Block & Sediment Replacement Filter Cartridges Set (2 PCS)

$84.79

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Whole House 10 x 4.5 Inch. Big Blue Iron and Manganese Water Filter Cartridge

As low as $39.79

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Replacement Cartridges Set For Aquaboon 3-Stage Iron And Manganese Filtration System On Steel Frame

$109.79

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Aquaboon 5 Micron 20" x 4.5" CTO Carbon Block, GAC & Sediment Replacement Filter Cartridges Set (3 PCS)

$119.79

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Aquaboon 5 Micron 20 x 4.5 Inch Sediment Water Filter Cartridge

As low as $24.49

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Aquaboon 5 Micron 10" x 4.5" CTO Carbon Block, KDF & Sediment Replacement Filter Cartridges Set (3 PCS)

$79.79

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2 Pack Of Whole House 10 x 4.5 Inch. Big Blue Polyphosphate Anti Scale Water Filter Cartridge

$59.79

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Whole House 10 x 4.5 Inch. Big Blue Polyphosphate Anti Scale Water Filter Cartridge

As low as $34.79

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Aquaboon 1 Micron 10 x 4.5 Inch Sediment Water Filter Cartridge

As low as $12.39

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Aquaboon 5 Micron 20" x 4.5" Premium CTO Carbon Block, KDF & Anti Scale Replacement Filter Cartridges Set (3 PCS)

$189.74

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Whole House 20 x 4.5 Inch. Big Blue Polyphosphate Anti Scale Water Filter Cartridge

As low as $74.79

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The performance of any water purification system depends entirely on the condition of its filtration elements. Over time, even the most advanced systems lose efficiency as filters become clogged with trapped contaminants. Using high-quality replacement cartridges for water filter systems is the only reliable way to restore your equipment's original performance, eliminate chemical odors, and ensure your daily water supply remains perfectly clean and safe.

At Filterway, we provide a comprehensive selection of replacement cartridges designed to restore your system’s performance, eliminate chlorine odors, remove rust, and ensure your water remains perfectly clean and safe.

Find the Right Cartridge for Your System

Different water problems require specific filtration technologies. We stock replacement water cartridges in all standard industry sizes (Slim Line 10" x 2,5, Big Blue 10"/20", and Inline) tailored for your exact needs:

Mechanical Purification (Sediment & Pleated Filters)

Sediment filter replacements: Made from spun polypropylene, these cartridges act as a barrier against sand, rust, silt, and scale. Available in various micron ratings (from 1 to 50 microns), they are essential pre-filters protecting your plumbing and finer downstream filters.
Pleated sediment filters: Featuring a folded design, these cartridges offer a significantly larger surface area. They provide higher flow rates, lower pressure drop, and can often be washed and reused, making them ideal for high-water-usage homes or well water systems.

Chemical & Odor Removal (Carbon & Specialty Filters)

Granular activated carbon filters (GAC): Filled with loose activated carbon granules, these are highly effective at reducing chlorine, volatile organic compounds (VOCs), and foul tastes or odors. Perfect for under-sink systems and refrigerators.
Carbon Block Filters: Compressed carbon blocks that offer dual action—they trap fine sediment while providing maximum chlorine and chemical reduction.
KDF filters (Kinetic Degradation Fluxion): Utilizing a high-purity copper-zinc formulation, KDF media uses redox reactions to eliminate heavy metals (lead, mercury), control scale, and prevent microbial/bacterial growth inside the filter. Often combined with carbon to extend cartridge life.

Deep Purification & Targeted Applications

Reverse osmosis cartridges (RO) Membranes: The ultimate filtration level, removing up to 99% of dissolved solids (TDS), heavy metals, fluoride, and microscopic impurities.
Inline cartridges: Compact, self-contained filters with quick-connect fittings. Designed specifically for direct installation in refrigerators, ice makers, and coffee machines to improve beverage taste.

Benefits of Replacement Filter Cartridges

Investing in a high-quality cartridge for water filter systems guarantees that your household or business always has access to premium-quality water. Regularly updating your filtration elements ensures that your system functions exactly as engineered, delivering maximum contaminant reduction. Using specialized cartridge filters for water treatment provides several critical advantages:

Consistent Water Quality: Effectively eliminates heavy metals, chlorine, volatile organic compounds, and unpleasant tastes or odors.
Comprehensive Appliance Protection: Safeguards expensive household equipment—like water heaters, washing machines, and espresso makers—by preventing destructive scale and sediment buildup.
Cost-Efficient Operation: Maintains optimal system pressure and water flow, preventing premature wear on your filtration hardware and reducing long-term plumbing maintenance costs.

Why Regular Cartridge Replacement is Critical

Filters do not destroy contaminants; they trap them. Once a cartridge reaches its holding capacity, it becomes ineffective and can become a breeding ground for bacteria.

Key Benefits of Timely Replacement:

Appliance Protection: Prevents scale and sediment buildup inside water heaters, washing machines, and coffee makers, extending their lifespan and maintaining energy efficiency.
Optimal Water Flow: Clogged filters drop water pressure. Replacing them restores your system’s intended flow rate.
Guaranteed Safety: Ensures that your RO membrane or carbon media is actively removing toxins rather than letting them pass through.

Signs It Is Time to Change Your Filter

While most water filter cartridges have a rated lifespan of 6 to 12 months (depending on your local water quality and consumption volume), you should replace them immediately if you notice:

Drop in Water Pressure: A noticeable slowdown in your faucet flow or a slow-filling refrigerator dispenser.
Change in Taste or Odor: The reappearance of a chlorine smell, metallic taste, or mustiness.
Visual Cloudiness: Visible particles, rust tints, or sediment appearing in your glass.
Rapid Scale Buildup: Sudden white film or mineral deposits on your kettle, fixtures, or dishes.
System Alerts: The replacement indicator light on your filtration system.

Keep Your Water Pure with Filterway

Don't compromise on your water quality. Filterway makes maintaining your filtration system seamless with our extensive inventory of premium, certified replacement cartridges, fast shipping, and expert compatibility support.

Not sure which size or micron rating fits your system? Contact our support team today, and our technical experts will help you find the exact replacement solution for your home or business

FAQ

Do cartridge filters need to be replaced?

It’s recommended that you replace your filter every 1-3 years, but it’s not a main factor with which you need to decide whether you should change your filter or not; instead, check the “health” of the filter, how it’s doing the work. Performance of your filter depends on your use of it, so the recommended time frame for you might be different.

What are replacement filter cartridges?

Replacement filter cartridges are essential components in water filtration systems. They are the removable, replaceable elements responsible for filtering impurities from water. Over time, these cartridges become saturated with contaminants and lose their effectiveness. When this happens, you need to replace them with new cartridges to maintain the system's optimal performance and continue enjoying clean, safe water. Regularly changing these cartridges ensures that your water filtration system consistently provides high-quality water.

How do I know when it's time to replace my filter cartridge?

Knowing when to replace your filter cartridge depends on your specific water filter system. Many systems have indicators or timers that signal when it's time for a replacement. Otherwise, monitor factors like reduced water flow, unusual taste or odor, or follow the manufacturer's recommendations for replacement intervals. Regular maintenance and adherence to these guidelines will ensure your filter cartridge is changed at the right time to maintain effective water filtration.

What types of replacement filter cartridges are available?

Replacement filter cartridges come in various types to address specific water quality concerns. Common options include sediment cartridges for removing particles, activated carbon cartridges for chlorine and chemical removal, and specialty cartridges designed for heavy metals, bacteria, or other contaminants. Some cartridges combine multiple filtration stages. To choose the right replacement, identify your water quality issues and consult your system's specifications or a water treatment professional for guidance on the most suitable cartridge type for your needs

How do I choose the right replacement filter cartridge for my system?

Selecting the correct replacement filter cartridge for your system involves identifying your water quality concerns and consulting your system's specifications. Determine the type of contaminants you need to remove, such as sediment, chlorine, heavy metals, or specific impurities. Match the cartridge's specifications to your system's requirements in size, compatibility, and filtration capacity, consider seeking guidance from a water treatment professional to ensure you choose the most appropriate replacement cartridge for your specific needs.

Can I use a filter cartridge from a different brand in my system?

Our replacement cartriges are universal and suitable for the majority system brand. These cartridges have several benefits: - Cost Savings: Universal filter cartridges from different brands might be more affordable, allowing you to save money on replacement filters. - Availability: You may have more options and easier access to universal cartridges, especially if your system uses non-standard or discontinued filters. - Experimentation: Some users prefer trying different brands to find the one that suits their needs best in terms of filtration quality and longevity.

Can I reuse or clean a filter cartridge?

Most filter cartridges are designed for one-time use and are not intended to be cleaned or reused. Attempting to clean or reuse them can lead to reduced filtration efficiency and potential contamination of your water supply. It's best to follow the manufacturer's recommendations and replace filter cartridges at the recommended intervals to ensure consistent water quality and effective filtration in your system.

Are all cartridge filters the same?

All filter categories are different, even if they are the same size. It all depends on the material of which the cartridge consists of, for example: Carbon Water Filter, Melt Blown Sediment Filter, Mineral Filter, etc.

How are water filter cartridges measured?

Once you take off your filter, take a tape measure and capture the width across all sides, and then compare it to the new one which you are going to buy. There are four main sizes for standard water filter housings: 2.5“ x 10“ 2.5“ x 20“ 4.5“ x 10“, and your filter type should usually fit one of those.

What are the numbers on a water filter?

It’s the micron rating which determines the distance between pieces of filter inside. The rating defines the size of particles that allow it to pass through the filter. Larger the number of microns allows larger particles to pass through the filter, for example 25 rated one will pass more particles than 15 rated.