Jamb Spreader

The Jamb Spreader is a unique hand tool designed specifically for compression-jamb windows with tilting sashes. This trademarked tool significantly eases the task of tilting the sashes inward for cleaning. How? The Jamb Spreader provides you with the leverage to spread and hold the vinyl jambs apart, allowing you to simply pull the sashes inward, clean them, and then easily return them back to their places between the jamb liners.
 
As The Jamb Spreader is subsequently removed from the window, the ribbed jambs spring back into the sash grooves, re-establishing the window's weathertight fit.