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Chubb 3K75 5 Lever Mortice Sash Lock in the non British Standard 3621 version of the popular Chubb 3K74 Mortice Sash Lock, again available in two sizes and two different finishes and backed by a massive 15 year guarantee. Fire rated for use on 60 minute fire doors.

Chubb Mortice Lock 3K75 3 1/8"

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