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Grilles & Plenums


Grilles & Plenums

Greenmill AC brings you a comprehensive choice of grilles and plenums for air-conditioning & ventilation systems.

Below you'll find ceiling diffusers and circular diffusers, egg crate grilles and deflection grilles.

We also stock external weather louvres, air valves, and circular heritage outlets for a wide range of HVAC applications.

In addition, you can order both metal and plastic plenums, available with next day delivery, nationwide.