Supply grilles and registers are essential components of a building’s heating, ventilation, and air conditioning (HVAC) system. They play a crucial role in distributing conditioned air from the HVAC system into various rooms or spaces within a structure while also allowing air to return to the system for recirculation.

Supply Grilles: Supply grilles are openings typically found on walls, floors, or ceilings through which conditioned air is supplied into a room. These grilles come in various shapes (such as square, rectangular, round) and sizes to suit different HVAC system designs and architectural preferences. They are often equipped with slats, louvers, or fins that can be adjusted to control the direction and spread of airflow.

Registers: Registers are components that cover the openings (duct openings) where the supply grilles are installed. They provide a means to control the airflow by allowing users to open, close, or adjust the grille’s louvers to regulate the amount and direction of air entering a room. Registers are often equipped with dampers or adjustable blades that enable users to customize airflow based on their preferences.