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Big Berkey BK4X2 Countertop Water Filter System with 2 Black Berkey Elements and 2 Fluoride Filters
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Big Berkey Countertop Water Filter Review (January 2024)

Without doubts, water is an essential need for our survival. But more important is the need for clean water. A healthy lifestyle will be far from reach if the integrity of your water is in doubt.

Using clean water doesn’t only satisfy the basic need but also contributes to the overall health of your family. Unfortunately, not every homeowner can vouch for the quality of water they use every day.

Considering how inadequate the state of purity of most city supplies are, the need for extra purification thus becomes necessary. One of the best ways you can ensure of the safety of your drinking water is by using a filter system. And if you’re considering about opting for a countertop, then the Big Berkey BK4X2 Countertop Water Filter System will make a great choice.

When it comes to performance and quality, there are very few countertop water filters that rival the Big Berkey BK4X2. Generally believed by many to be the best and most innovative water gravity filters on the counter, this product is very effective for removing harmful microbes and chemicals that makes water unsafe for consumption. It design includes 4 water purification stages and a holding capacity of 2.25 gallons which ensures it produces enough water that can serve a family of four. Interestingly, this unit and the other models by Big Berkey don’t require electricity to function; which means you can save from the energy bills.

Main Features

Apart from its environmental benefits, this product comes with some amazing features which makes it a good catch which is why it’s top on our list of the best countertop filters. Some of these features are briefly discussed below:

Effective Filtration

Unlike many popular brands such as Brita which are only useful for improving the taste of tap water, Big Berkey filters can accomplish more. The Big Berkey BK4X2 doesn’t only provide you with water that tastes great but also does the job of filtration really well.

By employing an advanced filtration process, this unit effectively removes contaminants such as chlorine, fluorine, chloramine, heavy metals, pharmaceuticals and VOCs, as well as harmful microorganisms like bacteria, virus, parasites and cysts.

Long Lasting Filters

Another advantage of the Big Berkey BK4X2 is that it comes with filters that can serve you for a long time. Each one its carbon filters can actually filter up to 30,000 gallons of water which is more than 2 years of filtration depending on your water source and how often you use the unit.

Although the holding capacity of the system is 2.25 gallons, it can purify up to 3.5 gallons of fresh clean water per hour. Now that’s enough water to meet your demand.

Highly Portable

The countertop design of this unit makes it portable and easy to use. In order words, you can convenient carry it about, transferring it from one place to another without any worries. This is really important if you don’t have a permanent living situation. Not every countertop filters gives you such convenience.

Easy Assembly and Maintenance

Setting up the Big Berkey BK4X2 is a breeze. You don’t even need any special plumbing skills to put things together because no plumbing is required. Just follow the instruction manual or watch the tutorial video online and you should be done in a few minutes. And interestingly, the system doesn’t require much maintenance over the course of its life. Depending on the volume of output, filter should be replaced every few years. Occasional cleaning of the carbon filters is also recommended.


  • Excellent filtration
  • Portable and easy to use
  • Elegant design
  • Great customer support
  • Low maintenance and easy assembly
  • Emergency preparedness travel friendly
  • Produces fresh clean water
  • Doesn’t require electricity
  • Long lasting filter


  • Price is a little bit expensive
  • Low quality plastic nut
  • It is difficult to prep the filters

Frequently Asked Question

Q: Does the fluoride filter remove 100% of the fluoride in water?
A: NO. How much it removes depends mostly on the pH level of your water source.
Q: Will it remove iron from my water?
A: Yes, it reduces 99.9% of iron.
Q: Does this unit rely on gravity and has no connection to a faucet for pressure?
A: Yes
Q: How long the filters last?
A: About 5 years: 2 of the filters last 6000 gallons.
Q: Does it remove chlorine?
A: Yes, removes chlorine with just the normal black filters.
Q: How do you fill this system?
A: You will need to fill all Berkey systems from the top.
Q: What warranty does the Berkey have?
A: 6 months according to the company’s website.
Q: Can this support a 3 gallon or 5 gallon jug (approx. 25-43lbs) on top with the lid off to reduce having to refill as often?
A: Absolutely no. You should use the system as it’s designed to be used.
Q: Does this remove glyphosate?
A: Currently no testing has been done with glysophate.
  • 9.8/10
    - 9.8/10


Besides its little expensive price and low quality plastic nut, every other thing about the Big Berkey BK4X2 is a good take. It would have probably received a complete rating. But notwithstanding, this unit is amazing and is one the best products you will come across in the market. If you’re looking for a filter system that is travel-friendly and can provide clean water for your family all year round, then the Big Berkey BK4X2 will definitely make a great choice.

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