Tilt window locking device

A home owner from Myrtle Beach, SC says:
September 9, 2022
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 from SWISCO responded:
September 13, 2022

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! 
9 lbs Series 161 Roller-Tilt
9 lbs Series 161 Roller-Tilt
S161-09
$6.97
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