Master Lock 3-1-4in Wide Set Your Own Combination Wall Lock Box 5401D Combination ARC-fault and ground fault

Combination ARC-fault and ground fault class A 6 mA

6 7/8 inch high housing appropriate for new construction and 2 x 8 inch ceiling joists

Easy to assemble

Use to control lighting with the opening and closing of a door

Installed on the 3/4-inch main water line at the point of entry

Master Lock 3-1-4in Wide Set Your Own Combination Wall Lock Box 5401D Combination ARC-fault and ground faultThe Master Lock No. 5401D Wall Mount Lock Box features a 3 1 4in (83mm) wide metal body for durability. The wall mount design offers permanent installation. Set your own 4 digit combination for keyless convenience and increased security. The shutter door protects combination dials from weather, dirt and grime; and molded body and vinyl coated shackle prevent scratching. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.