The Model V400S Central Vacuum Hose is a 30-foot long, extra wide 1-3/8 inch diameter crush-proof hose with swivel handle and low voltage control switch. The trigger band on the hose end is connected to the low-voltage control switch in the handle. The handle’s control switch starts and stops the central vacuum while the hose is inserted into a wall inlet valve. The tool’s vacuum power can be controlled with the handles built-in suction control ring. A spring-load release button secures attached tools and wands. Works with all air-driven power heads and accessory tools.