I am having difficulty locating CPVC fittings to install a 4 port Moen shower valve. The Moen valve has 4 brass, 1/2 mnpt ports. Some of the CPVC fittings I did find state they are for cold water use only. I could use either male or female fitings (adapters) if I had to although the female adapter is preferred. Am I missing something here ? Hard to believe Moen designs a part that you can't install relatively easy. Help !