Choose your RO Replacement Filter

The APEC 5-Micron Sediment Filter delivers outstanding performance and value for general water filtration applications requiring long service life, high purity, and minimal replacement frequency. Manufactured using patented melt-blown microfiber technology, this filter is a 100% pure polypropylene depth filter with superior dirt-holding capacity.

The FI-PHPLUS-QC is a 10-inch inline mineral filter designed to enhance the taste of drinking water by adding high-purity, food-grade calcium minerals. This cartridge contains 100% U.S.-made calcium carbonate, effectively neutralizing acidity and increasing the water’s pH, making it ideal for those who prefer mineral-enriched water.

The APEC® Refining Coconut Shell Carbon Filter provides excellent performance and value for general water filtration applications requiring long service life, high purity, and minimal replacement frequency. Designed with granular coconut shell activated carbon, this filter effectively improves water quality while ensuring durability. Its 1/4" quick-connect compression fittings allow for fast, hassle-free installation and replacement.
The APEC 5-Micron Sediment Filter delivers outstanding performance and value for general water filtration applications requiring long service life, high purity, and minimal replacement frequency. Manufactured using patented melt-blown microfiber technology, this filter is a 100% pure polypropylene depth filter with superior dirt-holding capacity.
The FI-PHPLUS-QC is a 10-inch inline mineral filter designed to enhance the taste of drinking water by adding high-purity, food-grade calcium minerals. This cartridge contains 100% U.S.-made calcium carbonate, effectively neutralizing acidity and increasing the water’s pH, making it ideal for those who prefer mineral-enriched water.
The APEC® Refining Coconut Shell Carbon Filter provides excellent performance and value for general water filtration applications requiring long service life, high purity, and minimal replacement frequency. Designed with granular coconut shell activated carbon, this filter effectively improves water quality while ensuring durability. Its 1/4" quick-connect compression fittings allow for fast, hassle-free installation and replacement.



Reverse Osmosis Single Filters
APEC water systems use many different types of filters to provide you with the best tasting clean water for your home and needs. These filters are the heart of your APEC water system and each play a crucial role in the water filtration process. Whether it's sediment filters to remove rust, carbon filters to remove chlorine, or RO membranes to remove impurities, APEC water filters ensure your family has the best tasting and cleanest drinking water.
Here are some of our most commonly used filters!
Sediment Filters: Catch particles like sand, rust, and dirt before they can reach the more delicate parts of your system.
Carbon Filters: Remove chlorine, chemicals, and odors, leaving your water tasting crisp and refreshing.
RO Membranes: The powerhouse, removing dissolved solids, heavy metals, and microscopic contaminants.
Post-Carbon/Polishing Filters: The finishing touch that ensures every glass is smooth and fresh.
Cleaner, Safer Water
Replacing your filters regularly ensures that the water coming from your tap is free from harmful substances.
Cost-Effective Maintenance
Swapping out individual filters is an easy and affordable way to maintain your RO system.
Reliable Compatibility
High-quality compatible reverse osmosis filters fit a variety of systems, including most APEC models. Always check your system's user manual for the filter that works best.
Filter Installation is quick and easy!
All APEC systems come with an instructional product manual. If you are ever confused of what filters fit your APEC water system, simply review the system's product manual, use the quick and easy filter finder at the top of this page, or give our helpful customer service representatives a call! Contact Us
Carbon Filters
APEC’s extruded carbon block filters are engineered from activated carbon particles fused into a uniform, high-density block, delivering superior adsorptive capacity and filtration efficiency.
Alkaline Filters
Alkaline filters are designed to enhance water taste by adding high-purity, food-grade calcium minerals; ideal for those who prefer the refreshing quality of mineral water.
Quick Connect
The APEC® Refining Coconut Shell Carbon Filter delivers outstanding performance and value for a wide range of water filtration applications that demand long service life, high purity, and reduced replacement frequency.
APEC Water Filter FAQs
What types of single filters are available for RO systems?
APEC offers a variety of single replacement filters including sediment filters, carbon block filters, post-carbon polishing filters, inline remineralization filters, and reverse osmosis membranes. Each type serves a specific role in the filtration process, ensuring your water is consistently clean, safe, and great-tasting.
How do I know which replacement filter matches my RO system model?
Check the product's user manual, check your system's details page, use the filter finder at the top of this page, or give our customer service representatives a call! Contact Us
What is the role of a remineralization or pHPlus filter in an RO system?
These filters add back healthy minerals, such as calcium, to the purified water. They also raise the pH to reduce acidity, resulting in smoother, better-tasting water similar to bottled mineral water.
Are the filters compatible across different RO models (Ultimate, Essence, etc.)?
Yes, many filters are cross-compatible, though some are system-specific. For example, inline filters may be designed for specific models. Always verify compatibility before purchasing.
Can I mix and match single filters from different brands with my APEC RO system?
While some third-party filters may physically fit, APEC strongly recommends using genuine APEC filters. They are specifically engineered for performance, safety, and compatibility with our systems. Using off-brand filters may compromise water quality and void warranties.
How do environmental factors affect filter life?
Water quality plays a big role in filter lifespan. If your water has high levels of sediment, chlorine, or hardness, your filters may need to be replaced more frequently. Monitoring your water quality and TDS readings helps you maintain the right schedule.