The Grainger hose reel roller guide assemblies are replacement parts for hose reels. They help guide the hose onto the reel smoothly and prevent hose wear and damage. The assemblies consist of rollers, axles, mounting brackets, and hardware. They are made from durable materials like stainless steel, aluminum, or reinforced nylon. Roller sizes range from 2-8 inches in diameter to fit different reel capacities. They are an important accessory to keep hose reels functioning properly for smooth hose retraction and storage. Proper hose guides reduce hose wear, kinking, and damage during rewinding.