RegicoCraft Clear Pipe Dust Collection Kit 89pcs. #00351Contents: 8pcs. Clear Pipe Section 36" x 2. 1 2" OD, 16pcs. Transparent Splice 2. 1 2", 3pcs. 45 Degree Transparent Elbow 2. 1 2", 5pcs. Plastic Blast Gate 2. 1 2", 4pcs. Transparent T Fitting 2. 1 2", 2pcs. 90 Degree Transparent Elbow 2. 1 2", 1pc. Reducer 4" x 2. 1 2", 10pcs. Metal Mounting Bracketsm2. 1 2", 20pcs. Screws, 20pcs. Nylon Wall Plug