
SKU: FILTER-SET-CB3-KDF-20BB
The APEC FILTER-SET-CB3-KDF-20BB combines KDF media with carbon block filtration to deliver superior water quality. This set of three 20" Big Blue filters targets chlorine, heavy metals, and other contaminants, offering comprehensive protection and great-tasting water for your home.

SKU: FI-PHPLUS10-BB
The FI-PHPLUS10-BB filter cartridges utilize calcite media to neutralize low pH conditions and to re-mineralize acidic water that is low in minerals. Calcite is a naturally occurring calcium carbonate mineral which is often used to treat acidic water conditions and is completely safe for use with drinking water.

SKU: FI-CWS-BB
De-Ionization Replacement Filter for CWS-300 – 20-inch replacement filter (one per pack). Each CWS-300 system requires two filters for proper operation. Easy to install for quick maintenance.
SKU: FILTER-SET-CB3-KDF-20BB
The APEC FILTER-SET-CB3-KDF-20BB combines KDF media with carbon block filtration to deliver superior water quality. This set of three 20" Big Blue filters targets chlorine, heavy metals, and other contaminants, offering comprehensive protection and great-tasting water for your home.
SKU: FI-PHPLUS10-BB
The FI-PHPLUS10-BB filter cartridges utilize calcite media to neutralize low pH conditions and to re-mineralize acidic water that is low in minerals. Calcite is a naturally occurring calcium carbonate mineral which is often used to treat acidic water conditions and is completely safe for use with drinking water.
SKU: FI-CWS-BB
De-Ionization Replacement Filter for CWS-300 – 20-inch replacement filter (one per pack). Each CWS-300 system requires two filters for proper operation. Easy to install for quick maintenance.



Whole House Replacement Filters: Keep Your Water Clean, Fresh, and Healthy
What Are Whole House Replacement Filters?
Whole House water filters are the heart of APEC's Whole House water filter systems. These filters trap sediment, chlorine, iron, and other contaminants before water reaches your faucets.
Whether it’s a sediment filter for sand and rust, a carbon filter for chlorine and odors, or a specialty filter for iron or fluoride, using genuine APEC replacement filters keeps your water tasting great and your system running smoothly.
Tip: Even if your water looks clear, old filters can still harbor contaminants that affect taste and your system’s performance. Always use a TDS meter to test your water!
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Why You Should Replace Your Whole House Filters Regularly
Over time, filters get clogged with dirt, chemicals, and other impurities. Regularly replacing filters ensures every sip, shower, and meal uses water that’s clean and refreshing.
Protect Your Plumbing and Appliances
A clogged filter forces your system to work harder, which can wear down pipes, tanks, and appliances. Regular replacement keeps everything running smoothly.
Keep Your Family Healthy
Fresh filters, depending on the filter's function, can remove harmful substances like chlorine, chloramine, and heavy metals, giving you peace of mind that your water is safe for drinking and cooking.
Explore the APEC Whole House Filter Range
Solutions for Every Water Concern
APEC has a filter for almost every water need:
- Sediment Filters: Remove sand, rust, and grit before it reaches your home.
- Carbon Filters: Reduce chlorine and odors.
- Heavy Metal Filters: Say goodbye to iron and hydrogen sulfide
- Chloramine / Hydrogen Sulfide Filters: Remove unpleasant tastes and smells.
- Fluoride Reduction Filters: Reduce fluoride in drinking water.
- Low pH Neutralizing (Calcite) Filters: Balance acidic water to protect pipes and fixtures.
- De-Ionization Filters: Perfect for ultra-pure water needs.
How to Find the Right Replacement Filter
Check your APEC system's user manual. Or Contact Us for more information!
Why Choose Genuine APEC Replacement Filters?
- Reliable Performance: Designed specifically for all APEC systems.
- Durable & Long-Lasting: High-quality materials that stand the test of time.
- Peace of Mind: Protect your family, your appliances, and your system.
- Convenient Options: Available as individual cartridges or bundled kits for easy replacement. Flexible subscription are also readily available!
Even the best water system can’t work properly with worn-out filters. Using authentic APEC replacement filters ensures your water stays clean, safe, and healthy.
Whole House Replacement Filters
APEC Whole House filters provide a solution to all your unique water filtration needs. Whatever your peculiar requirements are, APEC has a filter for your home.
Replace Your Whole House Filters
Always replace your Whole House water filters regularly. Check your systems user manual or give us a call for a replacement schedule that matches your needs!
Solutions for Every Water Concern
Your home and your home's water are special and unique! APEC provides a Whole House water filter for your every filtration need!
Whole House Replacement Filters FAQ
What kinds of whole house replacement filters does APEC offer?
APEC offers a wide array of whole house filter options including:
- High-flow iron reduction specialty filters
- Chloramine/hydrogen sulfide reduction filters
- Sediment filters , Carbon block and GAC (granular activated carbon) filters
- Fluoride reduction filters
- Calcite neutralizing filters for low pH water
- De-ionization filters
What filter should I use if my water has a bad smell, or sulfur-like odor?
For odor issues such as sulfur or hydrogen sulfide, look for the “Chloramine/Hydrogen Sulfide Reduction” specialty filters. There are both 10-inch and 20-inch options depending on your system.
How often should I replace the whole house filter cartridges?
While exact timing depends on your water usage and water quality, many sediment and carbon filters are replaced every 6‐12 months. Specialized filters (iron reduction, fluoride, de-ionization, neutralizers) may last longer, up to 12-24 months. Monitoring water taste, flow rate, and clarity helps decide when to replace.
Is there a product suited for very rusty water or heavy iron content?
Yes. APEC carries “High Flow Iron Reduction Specialty Filters” (e.g. in 4.5"x20" size) and also bundles that include iron filters along with sediment and carbon. These are tailored to reducing rust discoloration and iron build-up.