APEC, Advanced Purification Engineering Corp. APEC is the leading manufacturer of residential reverse-osmosis drinking water filtration systems in the United States. We are based out of the City of Industry, California where we custom design and build our famous Ultra Reverse Osmosis® Systems.

With more than 17 years of industry experience and a loyal customer base that spans the globe, we are proud of our unbeatable reputation in delivering the highest quality water filtration systems. Our products are shipped worldwide to treat all types of water problems and have been employed successfully for a variety of residential, commercial and industrial applications.

Each APEC system is custom built to order at our laboratories here in the United States where they are thoroughly wet-tested for 12 hours before shipping. In the past 17 years, our superior engineering, design expertise, and attention to detail have earned our products the distinction of being the most durable water-filtration systems on the market. We are one of the last manufacturers whose primary filters and parts are all manufactured in the United States and certified by the FDA (Food and Drug Administration) and/or NSF International (National Sanitation Foundation).

This web site is our direct channel to the public. Our mission is to provide our visitors with useful, current information on the importance of water treatment as it pertains to their health, while delivering affordable water filtration solutions through our factory direct discounts and pricing.

In the years ahead, look to APEC to be at the forefront of design and innovation in the ever-changing water purification industry.

APEC has been developing customized water treatment systems for over 17 years. The following are just a few of the organizations that have utilized our systems for their water purification solutions.