Variable Fan Speed Controller 120V 5A 550W Variable fan speed controller 120 volts 4 inch (100 mm) in

4 inch (100 mm) in diameter and 25 feet in length

Vabink 8 inch stainless steel duct clamps are perfectly suited for connecting ducting

VABINK 6 inch stainless steel clamps can tightly secure flexible aluminum foil ducts

grow room and vent exhaust etc

Variable Fan Speed Controller 120V 5A 550W Variable fan speed controller 120 volts 4 inch (100 mm) inSpecifications: 120V AC, 60Hz. Maximum 5 Amps. Maximum 550 Watts. Built in internal electronic auto resetting circuit breaker. Plug and play variable speed controller. 3 speed settings: HIGH, MED, LOW, with power On Off switch. Optimal control range: 50 100%. Standard 3 pole plug construction with compact design. Dimensions: 3. 6" x 2. 1" x 2. 0".