External Grilles

Weatherproof Cowl for external walls, Stops drafts blowing back into the building. Available in a kit form HERE Internal flap to stop backdrafts Can also be used with a backdraft damper for maximu...

Weatherproof Cowl for external walls, Stops drafts blowing back into the building. Comes complete with Padded flaps and a rubber seal to stop unwanted noise and water getting into your house, If yo...