The Ortronics BFPT-2RU-10 19" Tool-less Snap-In Filler Panels come in a convenient 10-pack, designed for quick and easy installation. These 2U panels snap effortlessly into 19" EIA/ECA-310-E compliant tapped or 3/8" square hole mounting rails without any modifications. Their innovative, patent-pending design eliminates the need for field adjustments, allowing seamless swaps between different cabinet or rack types. Additionally, ridges on the panel's top and bottom rear edges create an effective seal when used in multiples, preventing tolerance buildup. Enhance your setup with these versatile fillers today!