If you are connecting three pipes together, and they all have smooth ends on them, you will want to use a “slip tee”. Standard slip tees represent the easiest way to connect three pieces of smooth pipe of the same size. The ends of all three pipes are glued into the tee, forming a joint.
All of our Schedule 40 fittings are NSF rated 14 & 61, which means they are certified for use with potable (drinking) water. Maximum temperature is 140°F.