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HVAC parts stainless steel motorized round air duct damper volume control damper 220v 4 inch 100mm4.6/5.0·8 reviews·"Good service"
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About 4 inch motorized damper
25 4 inch motorized damper products are offered for sale by suppliers on Alibaba.com, of which hvac systems parts accounts for 24%.
A wide variety of 4 inch motorized damper options are available to you, You can also choose from aluminum, plastic and steel 4 inch motorized damper,as well as from black 4 inch motorized damper