Fresh air valve Fresh 100

Easy to assemble fresh air vents with consist of an internal vent, wall bushing and an external grille. For walls thicker than 360mm, an extension pipe is available as an accessory. The vents have two positions which can be adjusted variably. Easily change between them using the pull string. The filter is placed in an expansion chamber which results in an extra large filter surface, fewer filter changes and good air distribution. Hole piercing 86mm, 5.2 l/s.