POWERTEC 70120 4-Inch Key Hose Clamp, 3-1/2-Inch to 4-3/8-Inch, 5PK,Southern Technology LLC,70120" /> Use with dust collection; 5 pieces per pack Stainless Steel Clamping range: 3-1/2-Inch to 4-3/8-Inch Allow for tool-less adjustments Optimizes flexibility of the hose system in your dust collection assembly