Grooved coupling

6" x 4" Grooved Conc. Reducer – 168.3*114.3, 6" x 3" Grooved Conc. Reducer – 168.3*88.9, 6" x 2 1/2" Grooved Conc. Reducer- 168.3*73, 6" x 2" Grooved Conc. Reducer-168.3*60.3, 4" x 3" Grooved Conc. Reducer – 114.3*88.9, 4" x 2 1/2" Grooved Conc. Reducer – 114.3*73, 4" x 2" Grooved Conc. Reducer – 114.3*60.3, 4" x 1 1/2" Grooved Conc. Reducer -114.3*48.3, 3" x 2 1/2" Grooved Conc. Reducer – 88.9*73, 3" x 2" Grooved Conc. Reducer – 88.9*60.3, 3" x 1 1/2" Grooved Conc. Reducer – 88.9*48.3, 3" x 1 1/4" Grooved Conc. Reducer – 88.9*42.4, 3" x 1" Grooved Conc. Reducer – 88.9*33.7, 2 1/2" x 2" Grooved Conc. Reducer – 73*60.3, 2 1/2" x 1 1/2" Grooved Conc. Reducer- 73*48.3, 2 1/2" x 1 1/4" Grooved Conc. Reducer – 73*42.4, 2 1/2" x 1" Grooved Conc. Reducer – 73*33.7