4-Way Ceiling Diffuser

4-way ceiling diffusers supply conditioned air in four directions at once, giving an even spread across the room without draughts. Made from coated aluminium with a clean, low-profile face, they suit offices, retail units, classrooms and homes, and fit neatly into standard ceiling grids.

We stock seven neck sizes from 150mm x 150mm up to 450mm x 450mm, with face sizes from 295mm x 295mm to 595mm x 595mm — the largest dropping straight into a standard suspended-ceiling tile in place of a 600mm x 600mm panel. Each product page lists both the neck and face dimensions, so match the neck to your duct or plenum connection and check the face against the ceiling opening before ordering.

To connect a diffuser to round ducting or flexible duct, add one of our plenum boxes. Order stocked sizes by 3pm for next-day delivery, and see the rest of the range in ceiling grilles, including pressed swirl diffusers for a swirl-pattern discharge.