Introducing the 4 in. 1/2 in. Steel Knock Out Round Flat Cover, a versatile and durable solution for all your electrical needs. This high-quality cover is designed to fit perfectly over knockout holes, providing a secure and professional finish. Made from sturdy steel, it offers exceptional strength and longevity, ensuring it will withstand the test of time. The 4 in. size and 1/2 in. thickness make it suitable for a wide range of applications, from residential to commercial projects. Whether you're working on a new construction or a renovation, this round flat cover is a must-have accessory. Upgrade your electrical system with the reliable and efficient 4 in. 1/2 in. Steel Knock Out Round Flat Cover.