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Fits 1/2" to 1-1/4" Diameter valves
Clear H2X Anti-Fog Dual Lens with Clear Shield
The Master Lock No. 491B Grip Tightâ„¢ Circuit Breaker Lockout Device fits wide or tall breaker toggles typically found on hi-voltage/hi-amperage breakers. The innovative patented Grip Tightâ„¢ design effectively locks out circuit breakers with a simple thumb turn and then close clamping handle for a tight grip on the toggle.