ABS Outer Square Inner Round Diffuser 600 - 2 Styles For Central AC | HUAQI

Model 104-L series outer square inner round ABS ceiling diffuser, available in 2 styles: Static Spiral Diffuser & Rotary Swirl Diffuser, standard 600×600mm face size with 430mm neck and 300mm round duct opening. Made of thick virgin ABS plastic, it is a dedicated air supply terminal for central air conditioning & fresh air systems, compatible with T-bar suspended ceilings including aluminum buckle, mineral fiber, gypsum and calcium silicate boards. It supports matching square-to-round duct reducers and adjustable air dampers, widely used for residential living rooms, offices, shopping malls and commercial ventilation projects.