KDF Water Filter Guide: Everything You Need to Know About These Filters

KDF Water Filters Guide

One of the best things you can do for your health is to make sure that your drinking water is clean. For some people, this means investing in a water filter system. But how do you choose the best water filter? While there are many different types available today, the most popular is the KDF filtration system.

In this brief guide, we will explore what KDF water filter are, the different types you can find in the market and whether they are ideal for your needs or not.


What is a KDF Filter?

KDF or Kinetic Degradation Fluxion is a popular type of water filter that is used to remove various contaminants from drinking sources. These systems are capable of removing harmful chemicals and bacteria from your tap water, including lead, iron, chlorine, and other contaminants.

Types of KDF Water Filter

There are different types of this filter available. They include:


KDF-85 is used to eliminate chlorine and other contaminants like iron and hydrogen sulfide that may be present in your drinking source. You can even get them in disk form to avoid back washing and reduce waste.


This model is specifically designed to convert free chlorine into harmless chloride salt. It also removes heavy metals and other chemicals from your drinking source. Additionally, KDF-55 inhibits the growth of algae and fungi, as well as bacteria and viruses (to a lesser extent).


The KDF-C is specifically designed to remove chlorine and odors as well as heavy metals like lead, iron, and copper from your drinking supply. This system works well in situations where low pressure is needed.


KDF-F targets bacteria and chlorine accumulation in tap water. The granules in this model are implanted in a fine mesh. As a result, they are perfect for use with activated carbon block filters.

How Does KDF Water Filters Work?

KDF filters work by using an oxidation/reduction (redox) process to reduce contaminants in the water.

In a redox reaction, electrons are transferred between molecules to create new elements. In this process, harmful contaminants are converted into harmless ones. Chlorine, for example, is simply converted into harmless chloride salts.

Copper, lead, mercury, and other heavy metals are also effectively removed when they bond with the media.

Where Are KDF Water Filters Used?

KDF filters are used in a variety of applications. Some of the most common places you’ll find them are in:

  • RV filtration systems
  • Under sink filtration systems
  • Whole house filtration systems
  • Shower systems

You will also find these devices in hospitals, restaurants, and industrial settings.

What Kind of Contaminants Does The KDF Water Filter Remove?

KDF filter elements are designed to remove a wide range of contaminants. These typically include:

  • Inorganic compounds
  • Heavy metals
  • Volatile Organic Compounds (VOCs)
  • Algae, bacteria, viruses, and fungi

These systems are also known for their ability to convert free chlorine into less harmful soluble chloride.

Advantages and Disadvantages of KDF Water Filters?

KDF filters, just like every other equipment or device, have a lot of benefits as well as demerits. Here, we look at some of the top advantages and disadvantages of this system, that will help you make an informed choice when looking to buy.


The top advantages of this system are:

  • Increases the lifespan and effectiveness of carbon filters;
  • Completely recyclable;
  • Comes in a variety of granular types for a more effective filtration method;
  • Contains antibacterial qualities;
  • Works well at high pressure and with hot temperature;
  • Inexpensive to buy and maintain


These filters also have downsides despite their ability to remove some contaminants from water. They are:

  • They don’t get rid of organic substances (e.g. pesticides).
  • The KDF water filter cartridge requires hot water backwashing to remove insoluble pollutants.
  • Does not remove Chloramines.
  • Requires periodic maintenance.

Final Thoughts

There are several reasons why most people use a filter for water system, including the need to remove organic and inorganic contaminants.

If you fall into this category and don’t want to invest in a full water treatment system, a KDF water filter from FILTERWAY might be ideal for you. Not only are these products affordable, but they can improve the water in your home and make it healthier.

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