Wood window sash spring. Steel construction, zinc-plated, 4-7/8 in, upper or lower corner mount, nail on, allows repair of broken sash cords without removing sash, eliminates window rattle...
White plastic housing, flat edge plastic roller, top rollers adjust "up" to provide anti-lift protection, bottom rollers adjust "up and down" for alignment, used on Hilite 200 Series windows...
This H 3578 is for a 6 lb window or 12 lb if one is used on both sides. This Wood Window Sash Balance style has been used by many manufacturers of windows for several decades. It fits a 3-1/4 in by 6-3/8 in pocket that has been mortised about 2 in above the centerline of the window frame. It is an a..