The Master Lock Universal Ball Valve Lockout No.478:

• Designed to lockout virtually any size and shape quarter turn valve
• Accomodates both standard and odd-shaped handles up to 32mm thick &         41 mm wide
• Lockout arm ratchets to lock at any angle, and works with insulated pipes
• Assures the best fit every time
• Add on separate lockout arm (No. 479) to lock handles in throttled position and to lockout 3-, 4- and 5-way valves.
• Complete the lockout with Master Lock safety padlock