want to source a 4" extractor... the type that has switch activated opening/closing louvres attached to the fan unit to reduce draughts. Everywhere I've looked so far just has fan units with rigid louvres and the separate outside louvres.. the sort that flap about in the wind and let draughts thru.
Any suggestions links much appreciated![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Any suggestions links much appreciated