What Does C Mean In Copper Fittings?
What Does C Mean In Copper Fittings? What does C mean in copper fittings? A: “C” refers to female sweat connection in copper fittings, while “FTG” refers to male sweat connection. For example, a 1/2′′ C x 3/4′′ MPT (Male Threaded) fitting would have a 1/2′′ female sweat connection on one side and 3/4′′ male