The Shop-Vac® Sawdust Collection System collects sawdust and chips from all your stationary tools and attaches to your wet / dry vacuum using a 2-1/2 inch (6.4 cm) diameter hose (sold separately). The kit includes: eight 36 inch (15.2 cm) (91.4 cm) clear PVC collection tubes, six vacuum gates, five tube couplings, three 45 degree elbows, four tee-y fittings, two 90 degree elbows, ten mounting clamps and mounting hardware. The system fits all Shop-Vac® wet / dry vacuums with a 2-1/2 inch (6.4 cm) diameter inlet. The tools, vac and hoses shown in the picture are for demonstration purposes only and are not included with the Sawdust Collection System.