Grooved reducing tee

6" X 4" Grooved Red. Tee -168.3*114.3, 6" X 3" Grooved Red. Tee – 168.3*88.9, 6" X 2 1/2" Grooved Red. Tee- 168.3*73, 4" X 3" Grooved Red. Tee – 114.3*88.9, 4" X 2 1/2" Grooved Red. Tee – 114.3*73, 3" X 2 1/2" Grooved Red. Tee – 88.9*73, 2 1/2" X 2" Grooved Red. Tee – 73*60.3