How to measure the backset size for a replacement window lock espag lock mechanism 

In this video i show two ways to measure the backset size of a window locking espag mechanism.
Link below to our window lock espags...
www.double-gla...
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If you would like help to obtain a new window lock espag please feel free to send us some images of the old lock to sales@dgpsuk.com and we will be more than happy to help.
Thank you for watching from all of us at DGPS

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