Aluminum ventilation grill SERIES STL

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Sand Trap Louvres - STL Series STL sand trap louvres are specialist louvres which have been independently tested by BSRIA to BS EN 13181:2001, and proven to catch up to 92.5% of sand and dust. With two banks of interlocking vertical blades, sand trap louvres are designed to be the primary filters for air intakes in areas where airborne sand and dust are prevalent. The open ended blade design prevents clogging of the louvre, in contrast to the use of drain holes which are prone to becoming blocked. Download Product Card for specifications and selection criteria.