Overview Model DesignIndex Models Vdm Volume Damper Are Designed To Regulate And Balance The Amount Of Air Required.Aluminum BladesIndex Model Vdm Blades Allowing A Laminar Flow Across The Blades.InstallationIndex Models Vdm Are Suitable To Use In Vertical Or Horizontal Installation. Catalog Volume Damper Leave a comment Cancel reply Save my name, email, and website in this browser for the next time I comment. Send Comment