wood window sash lift hole center dimensions

A home owner from Louisville, KY says:

November 3, 2010

I need to replace my sash lift. It looks like 20-007 and is 4" wide, but the screw hole centers are more like 3.5" apart rather than the 3-3/16" in your diagram. I just wonder if your diagram might be wrong by chance? Could someone doublecheck to see if indeed they are 3-3/16" ? Thank you

Tom from SWISCO responded:

November 4, 2010

We have confirmed the measurements as 3 3/16". Your current sash lift may be from a different manufacturer.

Casey from SWISCO responded:

November 4, 2010

The 20-010 is a different style with a different installation hole pattern but this does have installation holes that measure 3-1/2" on center.

Wood Window Sash Lift

20-007

$4.27

Wood Window Sash Lift

20-010

$2.28

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