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Passive Ventilation
| Code | Desc. | Colours |
|---|---|---|
| M116 | With pull cord shutters to suit 121mm hole. |  |
| M118 | With pull cord shutter to suit 162mm hole. | |
| Code | Desc. | Colours |
|---|---|---|
| M116G | For use with window ventilator where the window in an open aspect or subject to storm conditions. | |
| Code | Desc. | Colours |
|---|---|---|
| M118G | For use with window ventilator where the window is an open aspect or subject to storm conditions. | |
| Code | Desc. | Colours |
|---|---|---|
| MV19 | Positioned at 200mm centre, along both sides of the roof, provides ventilation equal to a 10mm continuous air gap. ID 70mm x OD 80mm. |   |
| Code | Desc. | Colours |
|---|---|---|
| MV2-0BU | Suitable for fitting direct into cavity or through structure by means of an appropriate Marley extention duct (MV23 or MV21). |  |
| MV20T | Suitable for fitting direct into cavity or through structure by means of an appropriate Marley extention duct (MV23 or MV21). |  |
| Code | Desc. | Colours |
|---|---|---|
| MV21 | Designed to provide air flow to the void beneath suspended ground floors. |  |
| Code | Desc. | Colours |
|---|---|---|
| MV23 | Prevents builders debris and cavity insulating material entering and blocking the air passage into the building. | |
| Code | Desc. | Colours |
|---|---|---|
| WV1 | Allows water to drain out of cavity whilst providing ventilation. |  |
| WV2 | Allows water to drain out of cavity whilst providing ventilation. | |