Simple under sink kitchen water filters are less efficient than traditional under sink kitchen water filters because they filter all cold water, not just the cold water needed for drinking.
The under sink kitchen water filters come in many different models. We have already mentioned the traditional and simple types of water filter, but according to the brand you see, you can buy many models. Some of the water filters under the water tank have only one basic filter cartridge, some of them have multiple water filters, and some of them can not only filter water, but also make the water rich in minerals. There are usually more models to choose from for the traditional water filter, but the simple water filter is more and more popular recently.
The under sink kitchen water filters are easy to maintain. The filter under the sink is no more difficult to maintain than the counter top one. Of course, you need to kneel down to change the filter cartridge under the sink instead of on the counter, but in addition, this is the same basic principle.
Of course, there must be shortcomings in the good things, the under sink kitchen water filters also have their disadvantages:
The under sink kitchen water filters at only one point of use. Unlike the entire family's filter, the filter under the sink is only suitable for the sink they install. This means using unfiltered water when you are in the bathroom or shower. When you don't take a bath, you will definitely inhale all the fluoride, chlorine and the accompanying unpleasant smell. If your water is harder (i.e. high in minerals)washing with it can get annoyingly slow.
The under sink kitchen water filters need to install a filter tap. Most traditional types of under water filters need to drill a hole in the sink and install a new faucet. Although this is good because it allows you to choose when to use filtered water and when not to use it, it's also a bit cumbersome.