Crafted for exceptional performance in demanding environments, this extra heavy-duty manhole cover combines the robustness of polymer concrete with the lightweight advantages of a fiberglass base. Measuring 48"x78"x3", its design ensures fire and chemical resistance, making it a reliable choice for various applications. The two-piece construction comes complete with four bolts, ensuring secure installation while accommodating significant weight loads of up to 33,750 lbs. With an array of styles and sizes available, this cover is tailored to meet the diverse needs of infrastructure projects while maintaining high durability standards.