
Water filters are a great option to improve your water quality and reduce the use of plastic. You should be aware of the differences between water filters before you purchase.
Consumer Reports Best Water Filter - A Few Choices
It is important to know what contaminants the water filter is designed to remove before you buy one. Some filters will only remove certain impurities such as lead while others can handle many more. If you aren't sure what you want removed from your water, you can consult your local water quality reports and research any potential contaminants.
Countertop: For large water volumes, the countertop is an excellent choice. It is more likely to clog than faucet-mounted pitchers or models that are faucet-mounted, but it can also clutter up your countertop and not be compatible with most pull-down or spray taps. It is not recommended for immunocompromised people as they may be exposed to germs if water doesn't go through the filter.

Faucet mount: This faucet mounted filter is great for busy people or those who don’t have time to handle plumbing. These filters are easy to install, unlike pitcher or undercounter models. These models are typically less expensive than the undercounter ones and have an indicator light that lets you know when it's time to change your filter.
Because it is so simple to use, the Pur Plus Faucet Mount Filter is a favorite pick. It filters more than 70 contaminants including lead and mercury. The filter also includes a carbon block which enhances taste and smell. This filter is a great option for renters and those who don’t have the time or desire to make more complicated plumbing modifications.
There are a few options for water filter ratings
Express Water Whole House System, which improves the quality of your drinking waters throughout your home, is a great option for those who want to improve the taste and aroma of their water. It comes with a GAC (granular activated Carbon) and sediment filters to eliminate dirt, dust, and large pieces.
This filter is a great deal because it's easy to use and has a half-year lifetime. Its excellent filtration performance and made in the USA make it a great choice.

APEC Free Drinking Water Filtration Systems: A Better Option For Immunocompromised Individuals
It's a smart idea to search for water filters that are NSF-certified and can remove parasites like Cryptosporidium if you have compromised immune systems. These germs can cause infections and should be avoided by anyone with compromised immune systems, like those who have been diagnosed with cancer, AIDS, or transplants.
Amazon reviews are impressive at 20,000. This system uses a dual-stage filtration process which includes a reverse oxygenis filter to eliminate parasites and other harmful microorganisms. It's easy to install and runs quiet. APEC gives the filtered water to people who need it. It's a great alternative to the bottled water companies that produce water with high levels of parasites and pathogenic bacteria.