Libra Supply 1/2'', 1/2 inch, 1/2-inch Copper Pressure Sweat Tee C x C x C, (Pack of 5 pcs, click in for more size options) Copper Pressure Pipe Fitting Plumbing Supply Used aboveground for water supply piping Provides a branch supply line from a main line Cup x cup x cup connections Solder connection required Fitting ID Size: 5/8'' (OD 3/4''), Fitted Pipe ID Size: 1/2'' (OD 5/8'')