Patented design and ultra-tough polypropylene material make these devices the best choice to assuredly lock out your ball valves.
Master Lock 1482BP410 4-Lock Covered Station with 410RED Zenex Thermoplastic...
Ball Valve Lockout V442-V448, Fits on Valves Sized 1/2" to...
Wheel Valve Lockout Cover V303, Fits Valve Handles from 1"...
Lockout/Tagout Procedure Station Kit
Plastic Air Brake Glad Hand Lock, Keyed Alike, GLAD-KA