The G961 is a Vertical Extension Sleeve for the telescopic under floor ventilator. The G961 can be used to extend the G960 telescopic under floor void ventilator vertically and horizontally. Each extension sleeve enables a further two course brick adjustment vertically by 150mm. Alternatively the sleeve can also be clipped to the base of the g960 to provide horizontal extension of 185mm through larger cavities or wider internal block work.
Features & Benefits