Klober's 3-in-1 Eaves Vent Pack provides a simple and economic solution to eaves ventilation by providing all the necessary components required in one pack. Packs are available for continuous eaves ventilation of 10,000mm²/m and 25,000mm²/m. A complete 6m pack comprises of Fascia Vents, Roll Out Rafter Tray and Underlay Support Tray. Key Features Everything you need in one pack. Quick and easy to install. Prevents ponding behind the fascia board. Available in both 10mm and 25mm packs Area of application 450-600mm rafter centres.