Buying Guide

Culligan US-600A Detailed Product Review

No matter how clean your water looks, there is always some amount of impurities and contaminants present in it. To keep you and your family safe from contracting waterborne diseases, you must arrange for a safe water supply.

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One of the best things to do is to install an inline water filtration system under your sink. This will give you 100% safe water for cooking and drinking. With an efficient water filtration system, you no longer have to worry about getting big pitchers of clean drinking water.

Speaking of the water filtration system, Culligan US-600A is a reliable model out there. It is an affordable water filtration system that can give you a 100% safe water to cook and drink. It can be easily connected with the already existing kitchen faucet line.

This under sink water filtration system from Cullingan is not only easy to install but it also gives you a very efficient performance. If you are planning to install a new filtration system in your kitchen or home, then you should go through the review of the product below.

Culligan US-600A Water Filtration System: Key Specifications

Now let’s take a look at the specifications of Cullingan US-600A water filtration system:

  1. Model Number: US-600A
  2. Product weight: 1.74 pounds
  3. Product dimensions: 4.8 x 4.8 x 12.8 inches
  4. Size: 1000 gallon
  5. Material: Multi
  6. Colour: White
  7. Batteries required: No
  8. Warranty: 5 years


  • Efficient performance
  • Removes bad taste, chlorine, and odour
  • Easy to install
  • Compact design
  • Affordable


  • Not suitable for salty, well or softened water

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Culligan US-600A Water Filtration System Review

Now that you know about the basic details of the product, let us discuss the features of the product in detail. This will give you a good idea about the product and thus, you will be able to decide whether it is right for you or not.

  • Performance

Cullingan US-600A is a simple water filtration system that is suitable for only cold or municipal water. If you want the best performance, then you should use it only with already treated water. Other than that you can also use it for well water but that depends on the level of contamination.

The USA-600A is a basic water filter that gives you a decent and reliable performance. It makes the best solution for filtering chlorine water. Not just that but it can also remove bad taste and odour from the water.

Unlike many other water filtration systems, this one can be used with many a wide range of cartridge models. This includes D-40A, D-20A, D-30A, and D-10A. This makes it easier for you to get the replacement cartridge. You can even upgrade your system later if you want.

It is equipped with a filter that comes with a decent lifespan of 1 year. However, that is dependent on the use of the product. The pressure range of the product is 30 to 125 PSI. But you are advised to not push it to the limits. The ideal temperature ranges from 40F to 100F.

  • Installation and maintenance

Usually installing a water filter unit takes a lot of time. In some cases, you may even need to call for professional help. But with the Cullingan US-600A, you don’t have to face any such things.

To install this water filter system, you don’t need any additional faucet. Unlike many other water filters, this one comes assembled. So all you have to do is attach and connect it with the already existing faucet line under the sink. You can complete the installation process with just a clamp. There is no need for you to call for any professional help.

In case, you want a separate faucet, you will have to get a brass tee that fits will fit under your existing piping. As far as the maintenance is concerned, you don’t have to do much. The only thing you need to take care of is the filter. The filter needs to be replaced every year. By doing so you can maintain the performance and efficiency of the unit.

  • What’s included?

The Cullingan US-600A comes with a mounting screws 4 feet length of 3/8 inches plastic tubing along with a 2 quick connect elbows. The package also includes the D-20A chlorine filter and an SW-5A housing wrench.

The unit comes with all the required accessories you need. Not just that but the unit comes assembled as well. This means you have to put in less effort while installing it.


The Cullingan US-600A water filter system is provided with a 5 years warranty. Although this is a basic level water filter, the manufacturers have great confidence in the quality of their product. So if you are worried about the unit not lasting long, you are covered by the 5-year warranty. It is provided to make your purchase risk free.

From the above discussion, we know that the Cullingan US-600A unit is a basic level water filter. It is designed to be used with only municipal water. It gives you a decent performance. It can efficiently remove chlorine, bad taste and odour from the water. By installing this water filter unit, you can get clean water to drink and cook. The product is also very affordable.

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  1. Can it filter well water?

Yes, you can use it to filter well water, provided that it is not too much contaminated. This can put pressure on the filters. It is best suited for already treated municipality water.

  1. How long does it take to install the water filter?

It doesn’t take much longer to install the unit. It can be easily connected to the already existing faucet line under the sink.

  1. Do you have to shut off the water while changing the filter?

Yes, you need to stop the water supply before changing the filter.

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