Allegion/Schlage Primus® XP Security Upgrade

The Primus XP cylinder mechanism is a high-security upgrade option for Schlage products that provides additional security.

Primus XP is Schlage’s high security sidebar cylinder mechanism that brings an added level of security and control to any format of Schlage cylinder.

Aside from thwarting unauthorized key duplication, the Primus features also makes the cylinder pick-resistant. There are nine different levels of security available with Primus, making it a perfect fit for any application needing additional security.

Allegion/Schlage Primus® XP Security Upgrade

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