Unidelta In-Line Increasing Tee compression fitting for polyethylene (PE) pipes. Including tees that can have different branch sizes. This compression fitting functions as an increasing tee, connecting two pipes of one size to a third pipe of a larger diameter at a 90° angle. The “inline” designation refers to a straight-through style. Where at least one of the ends has a larger diameter than the other two.

To order the correct fitting, you need to know the diameter of the three pipes you are connecting. The sizing convention for an increasing tee is typically written as A x B x A, sizes are expressed in millimeters (mm) where:

  • A represent the two in-line pipe openings
  • B represents the 90-degree branch opening