Vabink 4"x8' Flexible Aluminum Duct for HVAC, Dryer Vent, Air Intake and Exhaust. Two Stainless Steel Clamps Included Variable fan speed controller 120 volts Strong and flexible duct: 3-layer

Strong and flexible duct: 3-layer aluminum foil laminate ducting with built-in steel wire spiral structure

Optimal control range: 50-100%

and pipes of 4" (100 mm) diameter

25 in (289 -311 mm)

Vabink 14 inch stainless steel clamps are perfectly suited for connecting ducting

Vabink 4"x8' Flexible Aluminum Duct for HVAC, Dryer Vent, Air Intake and Exhaust. Two Stainless Steel Clamps Included Variable fan speed controller 120 volts Strong and flexible duct: 3-layer4 inch (100 mm) in diameter and 8 feet in length. Strong and flexible duct: 3 layer aluminum foil laminate ducting with built in steel wire spiral structure. Duct can be shortened for various applications and installed easily for dryer vent, kitchen, bathroom, grow room and vent exhaust etc. Temperature range for duct applications: 18C~85C (0~185F). Two stainless steel clamps included in each pack.