The 1/4" Wall FM Retro Roll (ST) measuring 20.250 inches from Precision Pulley, Inc is engineered for optimal performance in retrofitting applications. This pulley features a sturdy 1/4" wall thickness, ensuring it can withstand demanding conditions while providing reliable operation. Its design is tailored for compatibility with various systems, making it a versatile choice for industrial use. The precision manufacturing process guarantees adherence to industry standards, ensuring quality and longevity. Enhance your machinery with this high-quality pulley that combines strength and functionality.