Andersen L1427/31 Narroline Sash Balance Unit Number_2056E This unit takes the place

This unit takes the place of a screen measuring 19-7/8" wide by 58-27-32" high

This screen measures 21-5/16" wide by 60-7/8" high

This sash has an unobstructed glass size of 15 inches wide by 13 15/16 inches high

Andersen 3052 Conversion Kit for Narroline Windows - White Exterior & Natural Pine Interior

This screen measures 16-13/16" wide by 24-5/16" high

Andersen L1427/31 Narroline Sash Balance Unit Number_2056E This unit takes the placeAndersen Perma Shield Narroline sash balancer L1427 31. Sash balancers are metal boxes that contain a nylon cord under tension. The balancer number is a code for the tension and the cord length. The proper balancer must be used to maintain either the lower sash or the upper sash in an open position. If you replace one balancer you should replace both balancers.