Carlon 50 Lb. Rating Old Work PVC Molded Ceiling Box is a reliable and durable electrical box designed specifically for ceiling installations. Crafted from rugged polycarbonate material, this ceiling box exceptional strength and long-lasting durability. Its polycarbonate construction ensures that it will not distort or soften when exposed to heat, making it i for various environmental conditions. Moreover, it remains resilient and does not become brittle in cold temperatures, ing consistent performance over time. This ceiling box is UL listed, which means it has been tested and to meet stringent safety and performance standards, ensuring it is suitable for safe electrical installations and complies with industry requirements. Model Number: B618RR