The quality of Rain Bird products continues to drop each year I have been using the 8 port multi distribution head for more than 5 years an the last couple of years I have had occasions when all of a sudden the start leaking through a a pin hole in the side requiring replacement I just purchased a couple of these 8 port heads for replacement parts and installed on today. Absolutely unbelievable none of the unused ports would fully shut off. I added the caps which I have never had to do before and they still leaked. I am being forced to seek out out options Rain Bird not the company they once were