https://www.acdtrade.com.au/egg-crate-grille-400-x-400-removable-core/ECR400400
Egg Crate Grille 400 x 400 - Removable Core | ECR400400
The Egg Crate Grille features a round connection. Ideal for ceiling return air and exhaust applications, it is built with an aluminum frame and a lattice core,...
egg crate grillexremovablecore