UB41 Universal Tile Terminal Anthracite type_controls the quiet fan operates intermittently the quiet fan operates intermittently and boasts a high efficiency motor which runs at only 12dB(A) meaning it goes virtually unnoticed whilst in use If you are building a home with a floor area of between 116m² 277m² then one of our kits could be a cost effective way to purchase the components you need Ubbink's universal service terminal is suitable in most tiled and slated pitched roofs without the need to identify the make or design of the tiles or slates UB41's comprise of a hood on a circular upstand (160mm dia) with a 500mm x 500mm Ubiflex flashing skirt and stepped adaptor which allows connections to 100 110 125 150 160mm diameter ducting