Diffusers

Underground Preinsulated Duct System
Linear Diffuser Boxes and Adaptor

Two Linear Diffuser Adaptors Fit on a 48″ [1219 mm].
| ITEM# | Size | Outer Dimension | Register Size |
|---|---|---|---|
| 20-0058 (LDA) | 36" x 30" [914 x 762 mm] | Fits on 36", 48" [914 x 1219 mm] | |
| 20-0060 (LDA) | 23” x 20” x 6” [584 x 508 x 152 mm] | Fits on 24”, 36”, 48” [610, 914, 1219 mm] | |
| 20-0063 | 24” [610 mm] | 25” x 7” x 8” [635 x 178 x 203 mm] | 24” x 6” [610 x 152 mm] |
| 20-0062 | 36” [914 mm] | 37” x 7” x 8” [940 x 178 x 203 mm] | 36” x 6” [914 x 152 mm] |
| 20-0061* | 48” [1219 mm] | 49” x 7” x 8” [1245 x 178 x 203 mm] | 48” x 6” [1219 x 152 mm] |
| 20-0064* | 48” [1219 mm] | 49” x 7” x 8” [1245 x 178 x 203 mm] | 48” x 8” [1219 x 203 mm] |
| 20-0065* | 48” [1219 mm] | 49” x 7” x 8” [1245 x 178 x 203 mm] | 48” x 10” [1219 x 254 mm] |
*Size dependent on mounting configuration.
Universal Boot Style Diffuser Adapter & Boxes

90º Boot Universal Reducer Adaptor

| ITEM# | Size | Register Size |
|---|---|---|
| 20-0059 | 90º Boot Universal Reducer Adaptor | 10”x 8” [254 x 203 mm] |
| 20-0414 | 14” [356 mm] | 14“x 4” [356 x 102 mm] |
| 20-0416 | 16” [406 mm] | 16” x 4” [406 x 102 mm] |
| 20-0418 | 18” [457 mm] | 18” x 4” [457 x 102 mm] |
| 20-0424 | 24” [610 mm] | 24” x 4” [610 x 102 mm] |
| 20-0614* | 14” [356 mm] | 14” x 6” OR 14” x 8” [356 x 152 OR 356 x 203 mm] |
| 20-0616* | 16” [406 mm] | 16” x 6” OR 16” x 8” [406 x 152 OR 406 x 203 mm] |
| 20-0618* | 18” [457 mm] | 18” x 6” OR 18” x 8” [457 x 152 OR 457 x 203 mm] |