| A-Catalog Home | Air Diffusers | Architectural Linear Wide Slot Diffusers | Free Flo |
| Surface Mounted | Concealed Mounting | Offset Ceiling | Beveled Flange | Lay-In T-Bar |
| FFS-100 - 1" Slot | FFCM-100 - 1" Slot | FFX-100 - 1" Slot | FFBF-100 - 1" Slot | FFL-100 - 1" Slot |
| FFS-150 - 1-1/2" Slot | FFCM-150 - 1-1/2" Slot | FFX-150 - 1-1/2" Slot | FFBF-150 - 1-1/2" Slot | FFL-150 - 1-1/2" Slot |
| FFS-200 - 2" Slot | FFCM-200 - 2" Slot | FFX-200 - 2" Slot | FFBF-200 - 2" Slot | FFL-200 - 2" Slot |
| FFS-250 - 2-1/2" Slot | FFCM-250 - 2-1/2" Slot | FFX-250 - 2-1/2" Slot | FFBF-250 - 2-1/2" Slot | FFL-250 - 2-1/2" Slot |
| FFS-300 - 3" Slot | FFCM-300 - 3" Slot | FFX-300 - 3" Slot | FFBF-300 - 3" Slot | FFL-300 - 3" Slot |
| Accessories | Mitered Corners | Curved Reference Sheets |
| AD - Air Distribution Plenums | Stack Miter (inside) | Flat Surface Application |
| LLS - Linear Diffuser Light Shield | Stack Miter (outside) | Concave Curve Application |
| Blank-Off Plate | Face Miter (90° & 45°) | Convex Curve Application |
| . | FFX Configuration 1 - Slot (All Sizes) | Required Ceiling Opening |
| Configurations | . | Useful Equations |
| Basic Linear Section / Run | Configuration R | . |
| Configuration L | Configuration I - Sidewall Inside Corner | . |
| Configuration S | Configuration O - Sidewall Outside Corner | . |
| Configuration Z | Diffuser End Cuts | . |
| Configuration U | . | . |