H3837 - Single or Double Hung Window Sash Cam, Top Mount sliding up window Hinge Swings: 90 degree in

Hinge Swings: 90 degree in and 90 degree out

30-2 = 31 inch balance

Non-Tilt Window Balance | FM Spiral Window Balance

while the 350-Foot Roll is the economical choice for professional glaziers

3450 or 34-5 = 35" Long  Vent Weight Range 30 to 34 lbs

H3837 - Single or Double Hung Window Sash Cam, Top Mount sliding up window Hinge Swings: 90 degree inH3837 Single or Double Hung Window Sash Cam, Top Mount, 2 per pkg. This plastic sash cam fits onto the upper top sides of the window (Vent) that is sliding up or down. The Sash Cam and window then rest on the top guide of the sash balance. This sash cam has a top of 15 16 inches wide by 1 1 4 inches deep and 2 1 4 inches tall. The width needs to fit correctly in the window's track frame in order for it to slide up or down properly. The depth allows