The 1000 Quad Series door roller by Anthony Innovations handles larger and heavier doors with ease. With an 880-pound-panel load capacity—440 pounds per roller—the door roller is engineered for strength and durability. The main housing ensures structural integrity, while the dual-layer bogie carriage balances load distribution for smooth and effortless panel operation. Precision bearing components minimize operating force, providing a seamless and whisper-quiet glide. Additionally, the increased screw pitch makes adjustments a breeze.