This unit replaces regulator assembly that services the main grill body and side burner. 3/8" female swivel flare on both hose ends. Each hose is 21" with 90° degree inlet to to regulator with Standard Type 1 (QCC-1) adapter for easy connection to a five gallon cylinder. Be sure your grill has 3/8" male flare threads coming off the manifolds before ordering. Some imported grills have barbed fittings and won't readily accept this hose and regulator assembly.