1st Place Products 1/2 inch WIDE 4 inch Key Hose Clamp Set - Pack of 6 - Great for Dryer Vents & Dust Collection Systems - 3 1/2" to 4 1/2"

FULTON 4" x 10' Ultra Flex Clear-Vue Heavy Duty PVC Hose - MADE IN USA!

POWERTEC 70136 4-Inch to 2-1/2-Inch Cone Reducer

POWERTEC 70108 4-Inch Blast Gate for Dust Collector/Vacuum Fittings

POWERTEC 70143 PVC Dust Collection Hose (4 Inch x 20 Feet) | Flexible Clear Vue Heavy Duty PVC Hose

POWERTEC 70127 2-1/2 Inch Key Hose Clamp | Stainless Steel 2.5Â" Thumb Screw Dust Collector Hose Clamps Â- 5 Pack, 2-1/2-Inch

4" x 10' CLEAR PVC DUST COLLECTION HOSE BY PEACHTREE WOODWORKING PW375

FULTON 4" x 20' Ultra Flex Clear-Vue Heavy Duty PVC Hose - MADE IN USA!

POWERTEC 70190 Y-Fitting, 4 x 2-1/2"

AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust