| VENTILATION TERMINALS | A1 FLUE SYSTEMS |
| DOMUS VENTILATION |
| EXYTE HARGREAVES LTD |
| FLÄKTGROUP UK LTD |
| HEPWORTH CLAY & TERRACOTTA |
| KLOBER LTD |
| OMNIE UNDERFLOOR HEATING |
| SE CONTROLS |
| TIMLOC BUILDING PRODUCTS |
| TROX UK LTD |
| UBBINK UK LTD |
| VENTILATION TERMINALS Chimney Insert | HEPWORTH CLAY & TERRACOTTA |
| VENTILATION TERMINALS Flat Roof | A1 FLUE SYSTEMS |
| CAVITY TRAYS LTD |
| KLOBER LTD |
| SE CONTROLS |
| UBBINK UK LTD |
| VENTILATION TERMINALS Mechanical Extract | DOMUS VENTILATION |
| EXYTE HARGREAVES LTD |
| FLÄKTGROUP UK LTD |
| OMNIE UNDERFLOOR HEATING |
| SE CONTROLS |
| TROX UK LTD |
| UBBINK UK LTD |
| VENTILATION TERMINALS Natural | A1 FLUE SYSTEMS |
| DOMUS VENTILATION |
| EXYTE HARGREAVES LTD |
| HEPWORTH CLAY & TERRACOTTA |
| KLOBER LTD |
| SE CONTROLS |
| TIMLOC BUILDING PRODUCTS |
| UBBINK UK LTD |
| VENTILATION TERMINALS Purpose Made | SE CONTROLS |
| VENTILATION TERMINALS Redundant Flues | HEPWORTH CLAY & TERRACOTTA |
| VENTILATION TERMINALS Roof Mounting | A1 FLUE SYSTEMS |
| DOMUS VENTILATION |
| HEPWORTH CLAY & TERRACOTTA |
| SE CONTROLS |
| UBBINK UK LTD |
