The ASP300 temperature controlled versions (user adjustable up to 320°C) is available in three different lengths and is designed to provide reliability in applications with high acid gases concentration, heavy dust load, and harsh installation environment. The ASP300 provide the choice of different lengths of filter element for three levels of dust load. A 150mm filter suits for most of the applications with dust concentration up to 1g/m3. With the 180mm filter element, a larger filtering surface allows sampling gases containing up to 4g/Nm3 of Dust. For extreme conditions, the 500mm model filter enables reliable sampling gases with dust load up to 10 g/Nm3 as standard and 20 g/Nm3 with the backflush.