Culligan US-EZ-4 Under Sink Water Filtration System, Premium

i have several of these in my home. they improve the taste of the tap water considerably.

Wouldn't connect to my sink.

So far so good. Installation was confusing. I'm not sure if my regular cold water tap is supposed to work too because it isn't. The dedicated tap works fine but I would like to have regular cold water too for washing hands etc.

I've used this product before. Although it was defective, caused a lot of water damage to my kitchen floor, I am sticking with it due to ease of use. Ease of filter changing. Hoping the newer one I just got from Walmart won't be defective

I am sure Culligan makes good water filtration systems. This is an under the sink system with a faucet on top of the sink. It is designed for a do it yourself installation. I have been working as a handyman for 15 years now. I have installed multiple kitchen faucets for customers over the years. Culligan sends this unit with a 1/2 inch water connector to attach to your cold water valve under the sink. Turn the cold water valve off, disconnect the water line coming from the faucet, install the connector provided with the unit and reconnect the water line from the faucet. Connect the filter to the cold water supply and to the easy to install faucet and you have filtered water. Should be a thirty minute or less project for even a novice DIY person. Except…..the common water supply valve used in every under the sink work I have ever done uses a 3/8 inch connector. After multiple trips to the hardware store looking for the correct adapters to connect Culligan's 1/2 inch connector to my standard 3/8 inch supply line I finally have filtered water. And it taste great! Culligan will tell you that they show a work around to this problem in the instructions. It would work except most modern new faucets come with an already attached supply line that connects to your cold water supply valve and it is way to small for it to work. Again, love my filtered water! Did not love the process to get it.