I purchased several of these during one of the holiday sales for a water change station. I am disappointed. Purchased Five 1 inch and Two 3/4 inch valves. Both sizes are hard to get started when closing or opening. To the point that I had to find a way to secure all my plumbing just to keep it from twisting when turning the valve. Go with the Cepex brand valve, which is what I should have done from the beginning.