Wiremold Evolution Series EFB45 Floor Box Flush Style Cover with Solid Lid TRWiremold Evolution Series EFB45 Floor Box Flush Style Cover with Solid Lid TR The Wiremold Evolution Series EFB45 Floor Box Flush Style Cover with Solid Lid TR delivers a thoughtful blend of sleek aesthetics and rugged performance for modern floor box installations. Engineered to attach securely to the EFB45S style floor boxes, this low profile cover disappears into floor surfaces, helping to maintain a clean, professional look while keeping