Fibrelyte - FL30D - Fibrelyte Valve Box Lid Rectangle 13 in. x 23 in. Drop-in Composite For FL30T Box
Fibrelyte®’s exclusive formulation of polyester resin, fiberglass and calcium carbonate yields lightweight, high strength products. This proprietary composite material is stronger, easier to handle and much lighter than concrete, saving both time and money during installation, service work and transportation.