The Inner Panel - 21 x 21 - Fiberglass from Hammond Manufacturing is designed for use in electrical enclosures. Made from high-quality fiberglass, this panel offers excellent durability and resistance to environmental factors. Measuring 21 x 21 inches, it fits standard enclosure sizes, providing a reliable barrier for electrical components. This panel is lightweight yet strong, making it easy to handle during installation. Its non-conductive properties ensure safety in electrical applications, while its compliance with industry standards makes it a dependable choice for various projects.