Accuform STOPOUT Ball Valve Lockouts Ball valve lockouts prevent valves from being turned on accidentally Lockout valve can attach and lockout handle either perpendicular or parallel Can be used to lock the valve in the OPEN and CLOSED positions Durable plastic resists solvents, cracking, abrasion and extreme temperatures Sizes: 3/8″ to 1-1/4″ (fits handles from 1/4″ to 5/8″ thick) 1-1/2″ to 2″ (fits handles from 1/4″ to 1/2″ thick)