Best Aqua Pro 400 GPD RO System

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Welcome to our comprehensive guide on the Aqua Pro 400 GPD RO System! At AquaFilter, we take pride in offering top-quality water purification solutions, and the Aqua Pro 400 GPD RO System is no exception. In this article, we will explore the features, benefits, and technical specifications of this remarkable reverse osmosis system. Whether you’re looking for a reliable water filtration solution for your home or office, the Aqua Pro 400 GPD RO System has got you covered.

Why Choose Aqua Pro 400 GPD RO System?

1. Unparalleled Filtration Technology

The Aqua Pro 400 GPD RO System utilizes state-of-the-art reverse osmosis technology to deliver clean, pure, and refreshing water. It employs a multi-stage filtration process that effectively removes impurities such as chlorine, sediments, heavy metals, and dissolved solids. With its high-quality filters and membranes, this system ensures that you and your family are provided with water of the highest purity.

2. Impressive Flow Rate

Unlike many other RO systems in the market, the Aqua Pro 400 GPD RO System boasts an impressive flow rate of 400 gallons per day. This means you’ll have access to a continuous supply of purified water, ensuring that your hydration needs are always met. Whether you’re filling up a glass of water, cooking, or even refilling large containers, this system delivers water quickly and efficiently.

3. Easy Installation and Maintenance

Installing and maintaining the Aqua Pro 400 GPD RO System is a breeze. The system comes with detailed instructions, making it simple for you to set it up without the need for professional assistance. Additionally, the replacement of filters and membranes is straightforward and can be done by following the provided guidelines. With this system, you’ll spend less time worrying about installation and maintenance, and more time enjoying pure water.

Technical Specifications

The Aqua Pro 400 GPD RO System is designed with excellence in mind. Here are some of its key technical specifications:

  • Filtration Stages: 5 stages
  • Flow Rate: 400 gallons per day
  • Tank Capacity: 3.2 gallons
  • Membrane Type: Thin Film Composite (TFC)
  • Filter Lifespan: Pre-filters (6-12 months), Post-carbon filter (1 year), Membrane (2-3 years)

How Does the Aqua Pro 400 GPD RO System Work?

The Aqua Pro 400 GPD RO System employs a multi-stage filtration process to ensure the highest quality of purified water. Let’s take a closer look at each stage:

Stage 1: Sediment Filter

The first stage involves a sediment filter that removes large particles such as dirt, sand, and rust. This preliminary filtration step protects the system’s delicate components from potential damage caused by these contaminants.

Stage 2: Carbon Block Filter

Next, the water passes through a carbon block filter. This filter removes chlorine, unpleasant tastes, odors, and other organic compounds, ensuring that the water you consume is not only pure but also refreshing.

Stage 3: High Rejection RO Membrane

In the third stage, the water is forced through a high rejection RO membrane. This semi-permeable membrane effectively removes dissolved solids, heavy metals, bacteria, and other harmful contaminants, leaving you with exceptionally pure water.

Stage 4: Post-Carbon Filter

After the water has gone through the RO membrane, it passes through a post-carbon filter. This final filtration step enhances the taste and quality of the water, ensuring that it is crystal clear, odorles and delicious.

Stage 5: Ultraviolet (UV) Sterilization (Optional)

For those who desire an extra layer of protection against bacteria and viruses, the Aqua Pro 400 GPD RO System offers an optional UV sterilization stage. This stage utilizes ultraviolet light to eliminate any remaining microorganisms, providing you with water that is not only pure but also microbiologically safe.

Benefits of the Aqua Pro 400 GPD RO System

  1. Improved Water Taste and Quality: With its advanced filtration process, the Aqua Pro 400 GPD RO System removes impurities, chlorine, and contaminants, resulting in water that tastes and smells better.
  2. Healthier Drinking Water: By removing harmful substances such as heavy metals, bacteria, and viruses, this system ensures that the water you drink is safer and healthier for you and your family.
  3. Cost-Effective Solution: Investing in the Aqua Pro 400 GPD RO System can save you money in the long run. Instead of purchasing bottled water, you can have an unlimited supply of purified water right at your fingertips.
  4. Environmental Friendliness: By opting for a home filtration system like the Aqua Pro 400 GPD RO System, you contribute to reducing plastic waste generated by single-use water bottles.
  5. Versatile Applications: This system is suitable for various applications, including residential homes, offices, schools, restaurants, and more. It provides a reliable and consistent supply of purified water for all your needs.


In conclusion, the Aqua Pro 400 GPD RO System is a top-of-the-line water filtration solution that offers unparalleled performance and reliability. With its advanced filtration technology, impressive flow rate, and easy installation, this system ensures that you and your family have access to clean, pure, and refreshing water every day. Say goodbye to impurities and enjoy the benefits of this exceptional RO system.


  1. Q: How often do I need to replace the filters and membranes?
    • A: The pre-filters typically need to be replaced every 6 to 12 months, the post-carbon filter every year, and the membrane every 2 to 3 years, depending on usage and water quality.
  2. Q: Is professional installation required for the Aqua Pro 400 GPD RO System?
    • A: No, the system comes with detailed instructions, making it easy for you to install it yourself without the need for professional assistance.
  3. Q: Can I use the Aqua Pro 400 GPD RO System for well water?
    • A: Yes, the system is designed to effectively remove impurities from various water sources, including well water.
  4. Q: How long does it take to fill up the storage tank?
    • A: The fill-up time depends on the water pressure and temperature, but generally, it takes around 2 to 3 hours to fill up the 3.2-gallon storage tank.
  5. Q: Does the Aqua Pro 400 GPD RO System remove beneficial minerals from the water?
    • A: While the system removes certain minerals, it is important to note that a balanced diet is the primary source of minerals for our bodies. The removal of minerals by the system is minimal compared to the overall mineral intake from food.