Callan Double Cylinder Deadbolt, Polished Brass Brand_Master Gardner It is constructed of durable

It is constructed of durable aluminum construction

and serves

boilers and chimney collars

ceramic faucet replacement cartridge

Callan Double Cylinder Deadbolt, Polished Brass Brand_Master Gardner It is constructed of durableDouble Cylinder Function: Double cylinder deadbolts are keyed on both sides of the door and are only locked and unlocked via a key. Often times they are used on doors where glass is near the door that could be easily broken and the thumbturn on a standard single cylinder lock would be accessible. Caution: Double Cylinder locks can pose a safety hazard in times of emergency due to requiring a key to unlock. Please check local codes before installing.