http://www.amico-pipes.com/pb-....pipe-system/pb-fitti Information
The聽PB female tee includes a pipe ****y, one end of which is provided with an internal thread connector, and the inner wall of the other two ports of the pipe ****y is provided with an annular groove. The outer wall of the annular groove of the product forms a corresponding convex reinforcing edge. This joint is easy to install, which can reduce internal water pressure, save costs and improve structural strength.