Constructed from durable polymer concrete, this tier 22 box measures 11" x 18" x 18" and features a straight wall design with an open bottom. It offers a cost-effective solution for below-ground applications, as its strength and lightweight characteristics surpass those of traditional concrete. Certified by UL and ANSI/SCTE77, this box is built to resist fire and chemicals, ensuring long-lasting performance in a variety of environments. With multiple styles and sizes available, it caters to diverse installation needs, making it an exceptional choice for handhole and manhole applications.