The VCS3 opposed blade damper provides airflow adjustment at the grille. Volume control blades move simultaneously in opposite directions to provide superior metering and control with minimal disturbance of the air pattern. For optimized sound performance it is recommended to match an upstream duct branch damper for large volume control with a damper at the diffuser for fine tuning. Optional damper for Price Industries' Model 530 Louvered Return Air Grille and Model 80 Egg Crate Return Aire Grille.

Lightweight and easy to install, this innovative product provides an economical solution for return air noise and improved speech privacy. Positioned directly above return grilles, the RAC prevents the transfer of occupant noise into the plenum above and prevents mechanical noise in the plenum from flanking through return grilles, or open vents, into the occupied space below.

Lightweight and easy to install, this innovative product provides an economical solution for return air noise and improved speech privacy. Positioned directly above return grilles, the RAC prevents the transfer of occupant noise into the plenum above and prevents mechanical noise in the plenum from flanking through return grilles, or open vents, into the occupied space below.

Lightweight and easy to install, this innovative product provides an economical solution for return air noise and improved speech privacy. Positioned directly above return grilles, the RAC prevents the transfer of occupant noise into the plenum above and prevents mechanical noise in the plenum from flanking through return grilles, or open vents, into the occupied space below.

Plaster frames allow for easy installation of square ceiling or t-bar style slot diffusers into drywall ceilings.