Metal flange is just what you need to attach filters and ducting to a hole in the wall.
Metal Wall Flanges are just what you need if a regular spigot isn’t cutting it. Essentially its a large metal ring, the wall flange can fit over a more irregular hole. If you have put a hole through a wall that isn’t quite as neat as it could be. A Wall Flange will help neaten it up. There are plenty of places the user can drill through for a fixing point if the pre-drilled holes are in the wrong place.
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