Marvin window sash lock
A home owner from Virginia beach, VA. says:
January 1, 2015
Distance between screws shown in pictures is 2-1/16". Windows were made in the mid to late 1990s.
Tom from SWISCO responded:
January 2, 2015
If the distance between your installation holes, measured from center to center, is 2-1/16" then I would recommend our 90-278. Check it out and let me know if you agree.