ReUze is for non-potable water distribution inside of a structure. It is purple (the universal color for non-potable water) and has the same properties as FlowGuard Gold. It is clearly marked "WARNING: NON-POTABLE WATER. DO NOT DRINK". ReUze is easily installed using FlowGuard Gold fittings and one-step solvent cement. It is commonly used in rainwater harvesting systems and grey water systems. Charlotte Pipe products are manufactured in the USA.