tier1water.com

Very Good

The Cartridges work perfectly - I have no complaints, at all, and I have already used two refills in the past - too, bad the company was having, or did, have stocking problems, but I guess it is the times we live in - fortunately I always am one step ahead and order way before I run out.

No

Had to call customer service to resolve a small installation problem. The agent was very pleasant and solved my problem.

great