When to Change PUR Water Filter?

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PUR Water Filters are a great option when choosing the best water filter pitcher. PUR water filters ensure maximum contaminant removal from your drinking water. Ultimately, you will get clean and healthy water to drink. But like all filters, they eventually must be changed to continue working effectively.

Knowing when to change the filter is key to ensuring your water tastes fresh and remains safe for consumption. This article will help you understand the signs that it’s time to toss your old filter and how to replace it with a new one.

Key Takeaway
  • PUR water filtration system removes chlorine, heavy metals, and some volatile organic compounds (VOCs) as well as improves the aesthetics of your drinking water
  • You should change your PUR water pitcher filter after it has filtered 40 gallons of water (about two months)  or when the Filter Change Light flashes red.
  • The lifespan of PUR water filters or refrigerator filters can vary depending on the water quality and water usage.

How Often Should You Change PUR Water Filters?

Maintaining a clean and safe drinking water supply is essential for a healthy lifestyle. When filtering your drinking water, PUR water filters are a great option. PUR water filters remove harmful contaminants from your drinking water. But how often should you change PUR Water Filters? 

Changing your filter every 40 gallons or every two months is recommended, whichever comes first. This timeframe may vary depending on tap water quality and how much you use the filter. 

pur water filters and glass and jug of water

What Causes PUR Water Filters to Wear Out?

Have you noticed that your PUR pitcher filter isn’t working as well as it used to? It may be time for a new one. Understanding why PUR water filters wear out can help you choose a suitable replacement and ensure you get the most out of it. 

So what causes PUR water filters to wear out? 

  • PUR faucet filters must be replaced regularly because they gradually lose their ability to remove contaminants from tap water. This is due to an accumulation of particles on the surface of the filter, which reduces its effectiveness over time.
  • Some PUR water filters have a limited lifespan and are designed to be replaced every few months or so for them to continue providing clean drinking water.

Pur Water Filters and Their Lifespan

Like many water filter pitchers, PUR water filters rely on the combination of activated carbon and ion exchange resin. Activated carbon removes chlorine, pesticides, and pharmaceutical residues, while ion exchange resin absorbs heavy metals like lead and mercury.

PUR offers two water filters that can be used interchangeably with their pitchers —PUR Basic and PUR Plus.PUR plus removes more contaminants than PUR Basic. Some contaminants include lead and volatile organic compounds (VOCs) like tetrachloroethylene. 

pur water filter replacements

PUR recommends replacing your filter after it has filtered 40 gallons of water or about two months of use. If your PUR filter has a filter indicator, change the filter immediately when the indicator light flashes red. 

Of course, the quality of your source water and water usage can also affect the lifespan of your PUR faucet filter. Needless to say, you might have to replace the filter sooner than expected if you notice a slow filtration time caused by a build-up of sediment in the filter. 

How to Replace PUR Water Filter?

Replacing your PUR water filter is an easy, cost-effective way to ensure you get the cleanest and purest drinking water possible. Replacing the filter regularly will not only keep your tap water tasting fresh, but it can also help remove impurities and contaminants from the water.

Here’s how to replace your PUR Water Filter:

  • First, submerge the new filter in cold water for at least 15 minutes. This will prime the filter to remove water contaminants efficiently. Skip this step if you’re using the PUR Basic filter. 
  • Second, hold the filter under cold running water for 10 seconds and allow the excess water to drain. Run cold water for 15 seconds using the PUR Basic filter.
  • Next, attach the replacement filter to the pour tray by pushing it through the hole in the middle as far as it goes. Lock it in place by turning it clockwise.
  • Now you can fill the pour tray with cold water! 

When changing your PUR filtration device, it is important to follow the manufacturer’s instructions carefully to ensure that your pitcher works appropriately and has the longest possible lifespan. Regular maintenance should also be done to keep the filter functioning optimally. 

deep container to soak filter

Are PUR Water Filters Reusable?

Many people choose PUR water filters because they reduce contaminants and improve the taste of water. However, PUR filters are not designed to be reused. They must be replaced regularly for your PUR pitcher to continue filtering your water efficiently.

PUR filters use a combination of activated carbon and ion exchange resin beads to absorb impurities from the water source. These media eventually become saturated with contaminants, reducing the filter’s effectiveness.


Regularly changing your PUR water filter can help ensure you drink clean and filtered water. The most important factor to consider when replacing your filter is the time frame based on how much water has been filtered.  

You should change your filter after 40 gallons or every two months, whichever comes first. Also, immediately replace the filter if the Filter Change Light flashes red. 

By following these steps, you can maintain a great tasting and healthy drinking experience for you and your family.

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