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A list of parts needed to replace an old style toilet water mixing valve. 

Mixing valve parts.

Because I have found this type of toilet mixing valve to be unreliable, I don't use them, if a toilet mixing valve fails I replace it with this setup.
2 spring check valves 1 for the hot water line, and one for the cold water line, 1 half inch copper tee, 1 half inch sweat ball valve, half inch copper pipe and what ever 1/2" copper fitting are needed to make it all come together.