... /2,3/4",1" 1.Product : Copper Socket Connection 2.Size: 1/2,3/4",1" 3. Material: Copper 4. ... testing by the Bureau of Inspection and Testing2)Long Wearing-Life: If the pipe system is correctly used, their wearing ... life (usinglife) can be lasted 50 years. If it is used ... it is safe and reliable Copper Fitting Copper Socket Connection Size:1/2",3/4",1"