Plated steel chain and die-cast keepers secures door while allowing viewing and ventilation. Can be unlocked with key from outside or inside. Bolt slides into keyed mechanism to lock. Includes 1 chain lock, 2 keys and installation screws. Prefix U on factory number denotes new Defender Security packaging.
Manufacturer: PRIME LINE PRODUCTS Model Number: U 9912 UPC: 049793099129
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