The GOODRETRO 13.125 by Precision Pulley, Inc is a compact and efficient precision pulley designed for various industrial applications. Measuring 13.125 inches in diameter, this model is engineered for durability and reliability. It complies with industry standards, making it suitable for a wide range of systems. The robust design minimizes wear, ensuring smooth operation and longevity. Perfect for retrofitting existing setups, the GOODRETRO 13.125 is an excellent choice for those seeking a dependable and high-performance pulley.