Carlon Nail-On Square Box, 4 X 4 in. is a durable and reliable 4-inch junction box designed for easy installation with captive nails. This blue PVC box features 10 integral clamps strategically placed with 3 on the top, 3 on the bottom, and 2 on each side to secure wiring effectively. It is UL Listed, ensuring it meets safety and quality standards for electrical installations. The box measures 4 inches in width and height with a depth of 1-5/8 inches, providing an 18 cubic inch volume for wiring space. It includes 1/2 inch and 3/4 inch knockouts and is molded from non-metallic PVC material, making it a sturdy choice for various electrical applications. Model Number: