Registers, Grilles & Diffusers

Shop HVAC registers, grilles, diffusers and vent covers for residential and light-commercial heating and cooling systems. Choose from supply-air registers, ceiling diffusers, return-air grilles and filter grilles in multiple sizes, face styles and airflow patterns.

Supply registers and diffusers deliver conditioned air into a room and may include fixed or adjustable blades for controlling airflow direction. Return-air grilles allow room air to flow back to the HVAC system, while filter grilles provide convenient access to an air filter installed at the return opening.

Available styles include adjustable bar-face registers, curved-blade registers, stamped-face wall and ceiling registers, round ceiling diffusers, T-bar diffusers and hinged filter grilles. Products are available for wall, ceiling and return-air applications.

Before ordering, measure the duct or wall opening rather than the outside face of the existing grille. Register and grille sizes generally refer to the opening dimensions, while the finished face is larger so it can overlap the surrounding wall or ceiling. Also verify the mounting location, airflow direction, damper requirements and whether the opening needs a filter.