1. Cut hole in ceiling or wall for the fan.  CHUMPRound is available in 4" and 5" versions

4. Insert the vent or fan into the hole, holding onto the tabs

7. Cut off the tabs as these are not longer required.

2. Insert CHUMPRound into the hole with the tabs visible.

5. Push the vent fully into the hole, pulling on the tabs to draw the wings onto the surface of the plasterboard.

8. The centre of the vent in firmly fixed to the ceiling, with all four screws secured.

3.  A view of the CHUMPRound in position, with the wings on the surface of the plasterboard.

6. Screw the vent to the ceiling, with the screws passing through the tabs and through the wings.

9. The finished product with the vent flush to the ceiling.