The AE family of extruded aluminum, square ceiling diffusers is available. The particular series names (AE1, AE2, AE3, AE4, and AE5) denote the diffusion patterns (one, two, three, and four-way and ...

Most new installations of grilles and diffusers involve a suspended ceiling grid, but some installations require surface mounting. Square ceiling diffusers and filter grilles can present the biggest ...