19" 1U Blanking Panel Kit 10 pcs. included to fill one to 10U of rack space Improves cooling efficiency Toolless mounting Fits any square hole, EIA compliant enclosure Tripp Lite's SmartRack SR1UPANEL10 is a 19" 1U blanking panel kit. The kit includes 10 pieces to fill from one to 10U of rack space. SR1UPANEL10 improves cooling efficiency inside the enclosure by filling unused rack space and optimizing airflow and preventing recirculation. Offers toolless mounting and fits any square hole, EIA compliant enclosure.