Minatee 4 Pcs 2-1/2 Inch Dust Control Flex Cuffs with Stainless Steel Hose Cl...

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4" Dust Control Reducer & 2-1/2" Flex Cuff with Stainless Steel Clamps

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POWERTEC 70149-P3V 4 Inch Dust Control Flex Cuff with Steel Hose Clamps, Hose...

Compact Dust Collection Hose Reducer: 6" OD to 4" with Steel Clamps & Flex Cuff

70322 4 to 2-1/2 Reducer and 4 Dust Control Flex Cuff with Hose Clamps Blac