Tilt window locking device

Home Owner from Myrtle Beach, SC
It's marked M9LB. It's on the side of the window frame. The window attaches to these on both sides and lock in place as you remove the window
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Casey
Casey from SWISCO
SWISCO
Expert

Hello,

I would recommend removing one of your balance assembelies from the window to compare to the specifications shown on the S161-09 roller-tilt product page. Thanks for posting! 

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