| GRA | Aluminium External Grilles |  |
| PF | Flexible Ducting |  |
| MAG | Metal Air Grille |  |
| PVC | Duct Tape |  |
| VST | Supply Valve |  |
| DVP | Smart Air Disc Valve |  |
| REB 5N | Speed Controller |  |
| REB2.5N | Spped Controller |  |
| Per W | Louvre Shutters |  |
| WC | Wall Cowls |  |
| DVS | Extract Valve |  |
| CAR | In-Line Circular Back Draft Shutters |  |
| MFL | Filtration Box |  |
| Sonex | Silencers |  |