A 225x175mm outside air weatherproof louvre supplied complete with an integrated snap box adaptor for direct duct connection. The snap box allows fast, secure attachment to round ductwork and can be detached for maintenance access. Ready-to-install combination for external wall fresh air intakes.
Snap on Box is manufactured from galvanised steel and powder coated black. Snap on Box fits 1 or 2 standard brick sizes.
