Frizzlife PX500-A Review

A reverse osmosis system is the ultimate water purifier for any home. When you install it in your home, you get on-demand purified water.

The Frizzlife PX500-A is an excellent tankless RO system that takes limited space under the sink. It has a daily output of 500 gallons and eliminates more than 1000+ contaminants from the water.

The system is a product of Frizzlife, a brand that delivers the most long-lasting, efficient and environmentally friendly water solution to every home.

The PX500-A is highly efficient, user-friendly and space-saving. The system also produces very tasty water.

To help you understand all the features of this product, we’ve compiled this detailed review. Keep reading.

Key Features of the Frizzlife PX500 at a glance

  • Produces 500 gallons of ultra-pure water per day
  • Eliminates 99.99% of water contaminants
  • It has a filter life monitor
  • 7 water filtration stages
  • 1.5:1 super-low drain ratio
  • Remineralization and alkaline function
  • Measures 15 x 5 x 18 inches
  • Weighs 23.7 pounds

Frizzlife Tankless RO PX500-A Full Review

  • Design

Unlike conventional RO systems, Frizzlife PX500-A is designed as an integrated unit without a bulky water tank. It comes in sleek housing and takes up to 70% less space.

Because there’s no storage tank, this unit takes up very little of the available under-sink space. It also eliminates secondary pollution that is common in systems with storage tanks.

Thanks to this integrated design, you’ll save up to 70% of space and avoid secondary pollution and leakage.

  • Water Flow Rate

The PX500-A has a fast water flow rate of 500 gallons per day. It can provide your family with instant, pure fresh water from the drinking faucet filling a cup within 12 seconds.

Although you might experience a brief drop in pressure from the faucet after turning the system on, don’t be alarmed, the flow will be steady in a few seconds.

  • Filtration Performance

The system has a reverse osmosis membrane (ASR312-500G) which removes more than 1000+ contaminants from the water. These contaminants include chlorine, chloramine, fluoride, TDS, limescale, lead and other heavy metals.

The pre-filter (ASR311) blocks all debris and reduces large particles like sand, silt, rust and other insoluble impurities. This process helps to condition the water and protect the RO membrane.

  • Remineralization and Alkaline Function

One of the unique selling points of the Frizzlife PX500-A is the alkaline and remineralization function. In fact, it’s one step beyond pure water but towards ultimate health in the long term.

Utilizing natural tiny stones and particles, the post-filter imitates mineral stones at the bottom of a spring lake. It restores essential minerals alkalizing the water pH to above 7.5.

Some of the minerals added include magnesium, calcium, potassium and sodium.

  • Super Low Drain Ratio

The system boasts a filtered to waste water ratio of 1.5:1. Only a gallon goes into waste for every 1.5 gallons of pure water generated.

This is almost as good as any RO system can produce and better than most other systems. And the waste water doesn’t necessarily go to waste since you can use it to water your plants or clean your car.

  • Filter Life Monitor

The color-coded filter life indicator embedded on the systems display panel will remind you to change the filters in advance. If the color is blue, the filters are in their best working condition. Should the color turn red, know that it’s time to change the filter.

If you fail to change the filters and the remaining % indicates 0, you’ll hear a loud buzz. This means that you have to change the filters with immediate effect since, at this stage, they can’t filter the contaminants in your water.

  • Multi-Usage

The purified water from the PX500-A is perfect for drinking, cooking, and making coffee and tea, among other uses. It can simultaneously serve your sink and refrigerator using an ice maker kit.

  • Easy Maintenance

Most traditional RO systems require you to turn off the water supply and drain the system to remove the filters. And as if that’s not enough, you have to get special tools to remove the filters or filter housing.

Tankless systems like the Frizzlife PX500-A present the filters right in the front of the system.

You just need to remove the faceplate, twist out the old filters and then twist in the new ones without any possible water leakage.

And as aforementioned, a smart filter life indicator embedded in the operation panel lets you know when the filters are near the end of life, past or due for replacement.

The alkaline remineralization filter is installed along the filtered water line between the dedicated faucet and the filtration system, so changing it is easy.

Of the filter cartridges used by the PX500-A, change the pre-filter every 6 months, the post-filter every 12 months and the RO membrane every 2 years.

  • Installation

Like any other under sink RO system, this unit requires a hole in the sink or countertop to install the dedicated filtered water faucet easily.

Besides that, the installation of the Frizzlife PX500-A is effortless and straightforward. With basic DIY skills, you should be able to install the system in an hour.

The system also comes with all components required for installation, including a brush nickel faucet set, installation manual, inlet and outlet tube and a power adapter.

  • Product Summary

The Frizzlife PX500-A is a highly efficient RO water filtration system that gets rid of 99.99% contaminants from your tap water. The under sink system is compact and space-saving hence ideal for tiny kitchens.

The system has a fast water flow rate of 500 gallons per day, filters water in 7 stages and has a remineralization stage that adds minerals back into the RO water.

It has a filtered water to waste water ratio of 1.5:1, has a filter life monitor, is easy to install and super-easy to maintain and use.

Pros and Cons


  • Compact tankless design
  • It has a filter life indicator
  • The alkaline filter remineralizes the water
  • Low filtered water to waste water ratio
  • Removes 99.99% of water contaminants
  • Produces 50 gallons of water per day
  • It comes with all components required for easy installation


  • Noisy when pumping water
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