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Watts Premier (531411) RO PURE RO-4 Reverse Osmosis 50 GPD System

Product Code F531411

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If quality and convenience are what you're in the market for, then this is the water filtration system for you! This design is the newest member of our reverse osmosis family and it is a snap, literally. These filters change out at the push of a button. You don't even need to turn off the water supply to the system and there's no waiting for the system to depressurize. Each individually contained filter just snaps into place. Including the membrane! It doesn't get easier than this.

This four stage reverse osmosis system consists of a stage 1 five micron Sediment filter that traps particulate matter like dirt, rust, and silt that will affect the taste and appearance of your water. Stage 2 is a five micron Carbon Block filter that helps ensure a greater reduction of chlorine and other materials that cause bad taste and odors (these are called PRE-filters because they filter in front of the reverse osmosis membrane). Stage 3 is the heart of the reverse osmosis system, the RO Membrane. This 50 gallon per day semi permeable membrane will effectively reduce TDS (total dissolved solids), Sodium and a wide range of contaminants such as Lead, Arsenic, Percolate, Chromium, Copper and Radium. It will also remove over 99.95% cysts such as Giardia and Cryptosporidium. The larger production membrane of this state of the art system also means this system has been designed to reduce Nitrates and Nitrites from your drinking water. It is important that this system is properly installed and maintained with a minimum incoming water pressure of 40 psi for it to operate as designed. Stage 4 is a high quality Carbon filter (this is called a POST-filter because it filters after the membrane). The filtered water passes through the membrane and enters the storage tank. When you're ready for a taste, it will leave the storage tank and pass through this fourth stage on its way up to the faucet. The end result? Crystal clear, high quality, and great tasting water!
Standard features:
  • VOC Carbon Block filter
  • "Designer" Monitor Faucet
  •  Easy to Install
  • Valves are built into the heads to prevent back-flow for water quality assurance.
  • WQA Gold Seal Certified to NSF/ANSI Std. 58.
  • Cartridges have double o-rings so they will not leak.
  • Quick connect fittings for easy installation.

In the Box:

  • RO Pure Reverse Osmosis module (complete with filters)
  • Parts Bag
  • (1) 3 Gallon Storage tank
  • (1) Faucet bag
  • Instructions (manual)


  • 1 - 5 Micron Sediment Filter: Reduces Dirt, Sand and Rust.
  • 1 - 5 micron Carbon Block: Reduces Chlorine, Objectionable Tastes and Odor.
  • 1 - 50 GPD Thin Film Composite Membrane: High production thin film composite membrane that separates unwanted impurities from your water.
  • 1 - Carbon Post Filter: Enhance the water€™s taste.


  • Recommended hardness not to exceed 10 grains per gallon, or 170ppm. System will operate with hardness over 10 grains but the membrane life may be shortened. Addition of a water softener may lengthen the membrane life.


  • The operating pressure in your home should be tested over a 24 hour period to attain the maximum pressure. If it is above 100 psi then a pressure regulator will be required.


    Width 12.00 in
    Height 12.0 in
    Depth 4 in
    Weight 20.10lbs
    Operating Temperatures Maximum 100°F (37.8°C) Minimum 40°F (4.4°C)
    Operating Pressure Maximum 100 psi (7.43 g/cm2) Minimum 40 psi (2.80 kg/cm2)
    pH Parameters Maximum 11 Minimum 2
    Iron Maximum 0.2 ppm
    TDS (Total Dissolved Solids) <1800 ppmTurbidity <5NTU


    The Best Watts Premier Reverse Osmosis Systems 

    Having access to clean, pure water is crucial to maintaining good health. The Watts Premier (531411) RO PURE RO-4 Reverse Osmosis 50 GPD System is the best option if you want to increase the quality of your drinking water quickly and easily. This in-depth blog post will discuss the characteristics and advantages of the amazing water filtration system sold by Isopure Water. Learn why this system is the best option for your home and how it can turn your tap water into pure, delicious drinking water.

    The quality of the water we drink has a significant impact on our health and well-being, and yet we often take it for granted. Water quality, including its flavor, odor, and safety, can be negatively impacted by common contaminants such as sediments, chemicals, and microbes. In order to guarantee that we have access to potable water, water filtration systems are essential.

    Keeping up with the routine maintenance of your Watts Premier (531411) system is easy. Keeping your system functioning smoothly is simple thanks to the availability of filter replacement cartridges. The straightforward layout guarantees that you won't have to sacrifice convenience to keep drinking clean water.

    Chlorine, silt, lead, and total dissolved solids (TDS) are all eliminated thanks to the 4-stage filtration process. The end result is water that is not only drinkable but also has a clean, crisp flavor.

    This system guarantees a continuous supply of clean water at a rate of 50 gallons per person per day. Even in low- to medium-use homes, there is no need to fret over a lack of supply.

    The Watts Premier (531411) RO PURE RO-4 System makes efficient use of your counter space by fitting neatly and unobtrusively under your sink, ensuring that you never run out of pure water.

    Reverse osmosis systems help the environment by decreasing the demand for plastic water bottles. With this setup, you may drink pure water without adding to the global problem of plastic pollution.

    The Watts Premier (531411) RO PURE RO-4 Reverse Osmosis System offers an easy installation and maintenance process. All components and comprehensive instructions for assembly are included in the package. Filter replacement is extremely straightforward, and you can quickly locate new filter cartridges to restore optimal system performance.

    You can provide your family access to clean, safe, and great-tasting water by investing in the Isopure Water Watts Premier (531411) RO PURE RO-4 Reverse Osmosis 50 GPD System. This system meets all your water purification requirements with its four-stage filtering process, fifty gallons per day (GPD) production rate, space-saving design, and positive effects on the environment.

    Don't skimp on the quality of the water you and your family drink and use. The Watts Premier (531411) system gives you the power to regulate your water supply, guaranteeing that it is both healthy and delicious. Put your mind at ease by ditching your worries about water contamination because you have access to a top-tier water filtration system.