EXTENSION UNIT AAGE VENT 250 MM

Extension tube for the traditional Building Pharmacy clean air valve. Recommended for walls with wall thickness greater than 162 mm but less than 250 mm. The filter frame and extension tube operate on a telescopic principle, with the extension tube sliding over the filter frame. Dimensions of the tube (W x H x D): 250 x 153 x 185 mm. The tube is designed and manufactured in Finland. This product description is an automated translation of the original Finnish description.