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 r..
White plastic housing, flat edge plastic roller, top rollers adjust "up" to provide anti-lift protection, bottom rollers adjust "up and down" for alig..
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 win..