This is an Supply Giant tee with a lead free cast brass construction with sweat and female threaded ends. In particular, the c x c x f (solder cup, solder cup and female threaded branch) connections are 1/2 inch x 1/2 inch x 1/2 inch in diameter for use with copper pipe and steel pipe sizes. Furthermore, the fitting is rated for use up to 125 LB of pressure and it meets the ansi B16.4 standard. ⚠ California Proposition 65 Warning: This product is known to the state of California to cause cancer, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.