Louvred air vent 9'x12'

[Carolina]

I'm doing up my bed room and have just removed some horrible old air vents and wanted to replace them with flush metal ones. However the hole on the wall is quite big and I'd need a 9' by 12' air vent to cover it but I can't find one anywhere. Do they even exist?

And would it be really bad if I used 2 9' x 6' vents instead? (I know it wouldn't look ideal, but better than hole in the wall!!!)

Thanks

[gasman]

12" x 9" is a fairly commom size you should be able to pick one up from any Builders/Plumbers yard . Failing that then you would probably be better off with a 12"by12" as apposed to two 6"by 9" which you should be able to get from any local DIY outlet.